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✎ EDIT: rules.yaml ← BACK

###############################
#
# Defines
#
###############################
signs: 260905

preffix:
 - e: exec
 - e: system
 - e: passthru
 - e: shell_exec
 - e: proc_open
 - e: popen
 - u: include
 - u: include_once
 - u: require
 - u: require_once
 - u: curl_init
 - u: curl_exec
 - u: curl_multi_exec
 - f: file_get_contents
 - f: file_put_contents
 - f: fopen
 - f: fwrite
 - f: symlink
 - f: move_uploaded_file
 - f: copy
 - n: header
 - s: preg_replace
 - s: trim
 - s: str_replace
 - s: rawurldecode
 - o: base64_decode
 - o: gzinflate
 - o: gzdeflate
 - o: str_rot13
 - g: mail
 - g: fsockopen
 - g: socket_connect
 - g: stream_socket_client
 - g: pfsockopen
 - d: pcntl_exec
 - h: register_shutdown_function
 - i: register_tick_function
 - k: mysql_query
 - l: assert
 - m: parse_ini_file
 - m: mysqli_query
 - p: show_source
 - q: eval
 - r: create_function
 - t: call_user_func
 - y: set_exception_handler
 - v: openssl_decrypt
 - w: strrev
 - x: gzuncompress

groups:
 - obf_ops: o
 - string_ops: s
 - exec: e
 - url: u
 - file: f
 - mail: g
 - sql: m

danger:
 - include
 - include_once
 - require
 - require_once
 - curl_init
 - curl_exec
 - curl_multi_exec
 - file_get_contents
 - file_put_contents
 - move_uploaded_file
 - header
 - copy
 - fopen
 - fwrite
 - symlink
 - exec
 - system
 - passthru
 - shell_exec
 - proc_open
 - popen
 - assert
 - eval
 - mail
 - fsockopen
 - socket_connect
 - stream_socket_client
 - pfsockopen
 - mysqli_query

writeloggers:
 - exec
 - passthru
 - shell_exec
 - proc_open
 - system

db_funcs:
 - mysqli_query
 - mysql_query

fp_rules:

###############################
#
# False Positives for Blamer
#
###############################

#
# Ai-Bolit
#
 - fp_rule:
#  Blamer
    filename: wp-admin/includes/class-wp-filesystem-direct.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 2

- fp_rule:
#  Blamer
    filename: wp-includes/functions.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 3

- fp_rule:
#  Blamer
    filename: backwpup/inc/class-create-archive.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 4

- fp_rule:
#  Blamer
    filename: wordfence/lib/wfUtils.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 5

- fp_rule:
#  Blamer
    filename: wordfence/lib/wordfenceHash.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 6

- fp_rule:
#  Blamer
    filename: wp-includes/class-wp-theme.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 7

- fp_rule:
#  Blamer
    filename: includes/class/template.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 8

- fp_rule:
#  Blamer
    filename: /usr/local/psa/admin/plib/modules/wp-toolkit/vendor/wp-cli/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php
    detection: u
    check_right: "u"
    check_wrong: "v"
    fp_id: 10

- fp_rule:
#  Blamer
    filename: /usr/local/psa/admin/plib/modules/wp-toolkit/vendor/wp-cli/vendor/wp-cli/wp-config-transformer/src/WPConfigTransformer.php
    detection: u
    check_right: "u"
    check_wrong: "v"
    fp_id: 11

- fp_rule:
#  Blamer
    filename: litespeed-cache/src/file.cls.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 12

#
# WP Plugins
#

- fp_rule:
    filename: wp-content/plugins/WPSecurity/load.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 43

- fp_rule:
#  Blamer
    filename: wp-content/plugins/sucuri-scanner/src/settings-hardening.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 48

- fp_rule:
#  Blamer
    filename: wp-content/plugins/wp-fastest-cache/inc/cache.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 49

- fp_rule:
#  Blamer
    filename: wp-content/plugins/wp-fastest-cache/wpFastestCache.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 50

- fp_rule:
#  Blamer
    filename: wp-content/plugins/comet-cache/src/includes/traits/Shared/CacheLockUtils.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 51

- fp_rule:
#  Blamer
    filename: wp-content/plugins/w3-total-cache/Cache_File.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 52

- fp_rule:
#  Blamer
    filename: wp-content/plugins/wp-super-cache/wp-cache.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 53

- fp_rule:
#  Blamer
    filename: wp-content/plugins/cache-enabler/inc/cache_enabler_disk.class.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 54

- fp_rule:
#  Blamer
    filename: wp-content/plugins/w3-total-cache/Generic_Environment.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 55

- fp_rule:
#  Blamer
    filename: wp-content/plugins/sucuri-scanner/src/event.lib.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 56

- fp_rule:
#  Blamer
    filename: wp-content/plugins/cache-enabler/inc/cache_enabler.class.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 57

- fp_rule:
#  Blamer
    filename: wp-content/plugins/sucuri-scanner/src/hardening.lib.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 58

- fp_rule:
#  Blamer
    filename: wp-content/plugins/comet-cache/src/includes/traits/Plugin/InstallUtils.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 59

- fp_rule:
#  Blamer
    filename: wp-content/plugins/wp-super-cache/wp-cache-phase2.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 60

- fp_rule:
#  Blamer
    filename: wp-content/plugins/sucuri-scanner/src/cache.lib.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 61

- fp_rule:
#  Blamer
    filename: wp-content/plugins/w3-total-cache/Util_Rule.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 62

- fp_rule:
#  Blamer
    filename: wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 63

- fp_rule:
#  Blamer
    filename: wp-content/plugins/sucuri-scanner/src/command.lib.php
    detection: e
    check_right: "e"
    check_wrong: "f"
    fp_id: 64

- fp_rule:
#  Blamer
    filename: wp-content/plugins/w3-total-cache/Util_WpFile.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 65

- fp_rule:
#  Blamer
    filename: wp-content/plugins/hyper-cache/plugin.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 66

- fp_rule:
#  Blamer
    filename: wp-content/plugins/w3-total-cache/lib/Minify/Minify/Cache/File.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 68

- fp_rule:
#  Blamer
    filename: wp-content/plugins/sucuri-scanner/src/lastlogins.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 69

- fp_rule:
#  Blamer
    filename: wp-content/plugins/wp-fastest-cache/inc/admin.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 70

- fp_rule:
#  Blamer
    filename: wp-content/plugins/wordfence/lib/wfConfig.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 71

- fp_rule:
#  Blamer
    filename: wp-content/plugins/w3-total-cache/Util_File.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 72

- fp_rule:
#  Blamer
    filename: wp-content/plugins/w3-total-cache/Cache_File_Generic.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 73

- fp_rule:
#  Blamer
    filename: wp-content/plugins/sucuri-scanner/src/option.lib.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 74

- fp_rule:
#  Blamer
    filename: wp-content/plugins/sucuri-scanner/src/lastlogins-failed.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 75

- fp_rule:
    filename: wp-content/plugins/backup/public/cron/cron.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 76

- fp_rule:
#  Wordfence 3rd
    filename: wp-content/plugins/wordfence/lib/wordfenceScanner.php
    detection: f|F
    check_right: "f|F"
    check_wrong: "v"
    fp_id: 84

- fp_rule:
#  Blamer
#
#  Save rules, logs and backups to files
#
    filename: webanalyze/firewall/firewall.class.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 85

- fp_rule:
#  Blamer
#
#  Read and write cache data
#
    filename: smarty/sysplugins/smarty_internal_write_file.php
    detection: f
    check_right: "f"
    check_wrong: "v"
    fp_id: 91

- fp_rule:
#  Blamer
#
#  Write cache to files
#
    filename: lib/PEAR/Cache_Lite/Lite.php
    detection: f.*?k
    check_right: "fk"
    check_wrong: "gk"
    fp_id: 93

- fp_rule:
#  WPCP
    filename: cloner.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 110

- fp_rule:
#  WPCP
    filename: lib/snaplib/class.snaplib.u.io.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 111

- fp_rule:
#  WPCP
    filename: lib/private/Files/Storage/Local.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 112

- fp_rule:
#  WPCP
    filename: kickstart.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 114

- fp_rule:
#  WPCP
    filename: wp-file-manager/lib/php/elFinderVolumeDriver.class.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 115

- fp_rule:
#  WPCP
    filename: file-manager-advanced/application/library/php/elFinderVolumeDriver.class.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 116

- fp_rule:
#  WPCP
    filename: file-manager-advanced/application/library/php/elFinderVolumeLocalFileSystem.class.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 117

- fp_rule:
#  WPCP
    filename: wordfence/lib/wordfenceClass.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 118

- fp_rule:
#  WPCP
    filename: pclzip.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 119

- fp_rule:
#  WPCP
    filename: bitrix/modules/main/lib/io/file.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 121

- fp_rule:
#  WPCP
    filename: codeigniter/system/helpers/file_helper.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 122

- fp_rule:
#  WPCP
    filename: clone_controller/class-pclzip.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 124

- fp_rule:
#  WPCP
    filename: akeebabackupwp/app/restore.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 125

- fp_rule:
#  WPCP
    filename: admin/includes/class-wp-filesystem-direct.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 128

- fp_rule:
#  WPCP
    filename: classes/softaculous.tar.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 131

- fp_rule:
#  WPCP
    filename: Utility/GeneralUtility.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 133

- fp_rule:
#  WPCP
    filename: lib/Parser.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 135

- fp_rule:
#  WPCP
    filename: archiveLib/pclzip.class.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 136

- fp_rule:
#  WPCP
    filename: Jobs/Files.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 140

- fp_rule:
#  WPCP
    filename: typo3/sysext/core/Classes/Utility/GeneralUtility.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 145

- fp_rule:
#  WPCP
    filename: plugins/faf/filters/image_filters.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 146

- fp_rule:
#  WPCP
    filename: sucuri-cleanup.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 147

- fp_rule:
#  WPCP
    filename: modules/boost/boost.module
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 148

- fp_rule:
#  WPCP
    filename: libs/Snap/SnapIO.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 153

- fp_rule:
#  WPCP
    filename: /duplicator/classes/package/class.pack.database.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 158

- fp_rule:
#  WPCP
    filename: /duplicator-pro/src/Libs/Snap/SnapIO.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 159

- fp_rule:
#  WPCP
    filename: ctrls/classes/class.ctrl.extraction.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 162

- fp_rule:
#  WPCP
    filename: wp-cli/php/WP_CLI/Runner.php
    detection: u
    check_right: "u"
    check_wrong: "g"
    fp_id: 163

- fp_rule:
#  WPCP
    filename: bulletproof-security/includes/functions.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 166

- fp_rule:
#  WPCP
    filename: wp-includes/SimplePie/Cache/File.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 167

- fp_rule:
#  https://cloudlinux.atlassian.net/browse/DEFA-4606
    filename: plugins/all-in-one-wp-security-and-firewall/classes/wp-security-backup.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 168

- fp_rule:
#  https://cloudlinux.atlassian.net/browse/DEFA-4612
    filename: plugins/ewww-image-optimizer/common.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 169

- fp_rule:
    filename: all-in-one-wp-security-and-firewall/classes/wp-security-backup.php
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 170

- fp_rule:
    filename: tmp_aps_scripts/configure
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 172

- fp_rule:
    filename: app/sdks/archiveLib/bin/data.bin
    detection: f
    check_right: "f"
    check_wrong: "g"
    fp_id: 173

rules_group:
 - group:
    group_id: 1
    group_name: Test rules. Should be disabled for production server
    app_name_id: 0
    enabled: no

- group:
    group_id: 2
    group_name: Common rules for all applications
    app_name_id: 0
    enabled: yes

rules:
###############################
#
# Test rules
#
###############################
 - rule:
    id: 1
    description:
     Test detector 1
    detection: e\|((a[0-9],[0-9]\|?)+)?(o\|?)+
    check_right: "e|ooo|oo|o|o|ooo|o|oo|oo|ooo|oo|o|oo|o|o|o|o|ooo|o|oo|oooooo|oo|ooo|o|o|oo|oo|o|o|o|o|o|oo|o|"
    check_wrong: "e|koo|oo|o|o|koo|o|oo|oo|ooo|oo|o|oo|o|o|o|o|ooo|o|oo|oooooo|oo|ooo|o|o|oo|oo|o|o|o|o|o|oo|o|"
    level: 1
    group_id: 1

- rule:
    id: 2
    description:
     Test detector 2
    detection: E\|((a[0-9],[0-9]\|?)+)?(s\|?)+
    check_right: "E|ss|s|ss|ssss|s|s|s|ss|ss|ss|s|s|"
    check_wrong: "|vs|s|ss|ssss|s|s|s|ss|ss|ss|s|s|"
    level: 1
    group_id: 1

- rule:
    id: 3
    description:
     Test detector 3
    detection: u\|((a[0-9],[0-9]|s)\|?)+(o\|)+
    check_right: "u|a1,8|o|o|o|o|o|"
    check_wrong: "u|a10,8|o|o|o|o|o|"
    level: 1
    group_id: 1

- rule:
    id: 4
    description:
     Test detector 4
    detection: f\|o\|s\|o\|f\|a1,1
    check_right: "f|o|s|o|f|a1,1"
    check_wrong: "f|o|s|o|f|a2,1"
    level: 1
    group_id: 1

- rule:
    id: 5
    description:
     Test detector 5
    detection: s:f|s|o|s|o|f
    check_right: "f|s|o|s|o|f"
    check_wrong: "f|s|o|s|o|d"
    check_buf: s:<?php
    level: 1
    group_id: 1

- rule:
    id: 6
    description:
     Test detector 6
    detection: s:f|o|s|o|s|o|f
    check_right: "f|o|s|o|s|o|f"
    check_wrong: "f|o|s|o|s|o|f"
    check_fp: 0
    level: 1
    group_id: 1

- rule:
    id: 7
    description:
     Test detector 7
    detection: s:f|s|o|s|o|s|o|f
    check_right: "f|s|o|s|o|s|o|f"
    check_wrong: "f|s|o|s|o|s|o|f"
    check_buf: s:<?php
    check_ext: php
    level: 1
    group_id: 1

- rule:
    id: 8
    description:
     Test detector 8
    detection: s:u|q|l|s|q
    check_right: "u|q|l|s|q"
    check_wrong: "f|s|o|s|o|s|o|f|a2,1"
    script_ext: s:.ico
    level: 1
    group_id: 1

- rule:
    id: 9
    description:
     Test detector 9
    detection: c:u
    check_right: "u"
    check_wrong: "f"
    script_ext: r:\.ico([0-9])test$
    level: 1
    group_id: 1

- rule:
    id: 10
    description:
     Test detector 10
    detection: ^f
    check_right: "f|q|l|s|a2,2"
    check_wrong: "u|s|o|s|o|s|o|f|a2,1"
    danger_files: 0,1
    level: 1
    group_id: 1

- rule:
    id: 11
    description:
     Test detector 11
    detection: f\|s\|o\|s\|o\|s\|o\|s\|o\|f\|a1,1
    check_right: "f|s|o|s|o|s|o|s|o|f|a1,1"
    check_wrong: "f|s|o|s|o|s|o|f|a2,1"
    check_buf: s:<?php
    check_ext: php
    level: 1
    group_id: 1
    check_fp_list: 2,3,4,5

###############################
#
# Blocking Rules
#
###############################

- rule:
    id: 10000
    description:
     Block including ico files
    detection: c:u
    check_right: "u"
    check_wrong: "e"
    file_op_name: r:\/\.[a-z0-9A-Z]{1,20}\.ico$
    check_fp: no
    funcname: include
    action: BLOCK
    level: 10
    group_id: 2

- rule:
    id: 10006
    description:
     Access to shadow file
    detection: c:f
    check_right: "f"
    check_wrong: "g"
    file_op_name: r:etc\/([^\/]+\/)?(shadow|passwd)$
    funcname: file_put_contents,fopen,fwrite,file_get_contents
    action: BLOCK
    level: 10
    group_id: 2

# DEFA-2409 rule contactemail/info
 - rule:
    id: 10011
    description:
     cpanel hack via contactxxx
    detection: c:f
    check_right: "f"
    check_wrong: "v"
    file_op_name: r:\.?contact(info|email)$
    funcname: file_put_contents,fopen,copy,fwrite
    action: BLOCK
    level: 10
    group_id: 2

- rule:
    id: 10047
    description:
     malware drop attempt from pic files
    detection: c:u
    check_right: "f"
    check_wrong: "g"
    script_ext: r:(?i)\.(ico|png|jpg|gif)$
    funcname: file_get_contents,file_put_contents,fopen,fwrite,curl_init,curl_exec
    action: BLOCK
    check_fp: no
    level: 10
    group_id: 2

- rule:
    id: 10047
    description:
     malware drop attempt from pic files
    detection: c:f
    check_right: "f"
    check_wrong: "g"
    script_ext: r:(?i)\.(ico|png|jpg|gif)$
    funcname: file_get_contents,file_put_contents,fopen,fwrite,curl_init,curl_exec
    action: BLOCK
    check_fp: no
    level: 10
    group_id: 2

- rule:
    id: 10048
    description:
     Malware drop/interaction blocked
    detection: c:U
    check_right: "U"
    check_wrong: "e"
    check_fp: no
    action: BLOCK
    funcname: curl_exec
    level: 10
    group_id: 2

- rule:
    id: 10048
    description:
     Malware drop/interaction blocked
    detection: c:F
    check_right: "F"
    check_wrong: "e"
    check_fp: no
    action: BLOCK
    funcname: file_get_contents
    level: 10
    group_id: 2

- rule:
    id: 10049
    description:
     Malware drop/interaction blocked
    detection: c:E
    check_right: "E"
    check_wrong: "s"
    check_fp: no
    action: BLOCK
    level: 10
    group_id: 2

- rule:
    id: 10056
    description:
     Malicious theme/plugin installation attempt
    detection: c:f
    check_right: "f"
    check_wrong: "g"
    script_ext: s:class-wp-filesystem-direct.php
    danger_files: 10056
    check_fp: no
    funcname: fopen,fwrite
    action: BLOCK
    level: 10
    group_id: 2

- rule:
    id: 10066
    description:
     Block malware drop
    detection: c:f
    check_right: "f"
    check_wrong: "g"
    funcname: fopen,fwrite,file_put_contents,file_get_contents
    file_op_name: r:(alfacgiapi|ALFA_DATA)\/
    action: BLOCK
    level: 10
    group_id: 2

# DEF-54748: StyleSmuggler, the unauthenticated Magento/Adobe Commerce RCE
# exploited from 2026-09-04. The exploit smuggles PHP into a file Magento never
# executes as code -- an uploaded image under pub/media, var/log/system.log, or
# a var/report/ crash report, a var/session/ session file -- then abuses a DI
# code scanner gadget to include it,
# so the shell command runs with the report or image as the executing script.
#
# Rule 10047 already blocks *drops* from image files; nothing covered the
# exec-family functions, and nothing covered var/log or var/report at all.
#
# Measured FP baseline, fleet-wide over 2026-08-14..18 -- five days entirely
# before the campaign's real start of 2026-08-20: 8 events on 4 servers, and
# all 8 are malware this rule should block (Joomla com_sppagebuilder .jpg
# webshells taking commands in the query string, a /tmp/*.jpg webshell, an
# obfuscated icon.png dropper). Zero events for var/log, var/report and
# var/session. The var/ list is explicit, not a bare /var/, so that legitimate
# generated code under var/generation/ is never matched. The var/ branch also
# requires at least one path segment before /var/, so it matches an
# application-relative var/ inside a docroot and never the system /var/log --
# a hoster's admin cron script living there is legitimate, and blocking its
# shell_exec would break it. Measured: 0 of 48 campaign var/-sink events on 21
# servers are in the system /var/, so this costs no coverage.
#
# The image pattern is case-insensitive. The v2 engine compiles rules with
# hs.Compile(exp, hs.DotAll|hs.SingleMatch, ...) (compiler/hyperscan.go:34) and
# passes no hs.Caseless, and the v1 path compiles with pcre_compile(..., 0, ...)
# (shared-storage/make-storage.c:840), so both match case-sensitively: a payload
# named x.PNG evaded the case-sensitive form. Verified against a compiled
# .rules.v2 -- .gif blocked, .GIF/.PNG/.JpG/.WebP not -- and (?i) closes it for
# +1.8 ns on the exec hook path, i.e. free. Sibling rule 10047 carried the same
# gap and is fixed with it.
#
# Deliberately NOT matched: vendor/symfony/mailer/.../ProcessStream.php, which
# calls proc_open legitimately for sendmail and is reached by the same request
# because the exploit provokes the Payment Transaction Failed Reminder email.
 - rule:
    id: 10070
    description:
     Shell exec from an image file
    detection: c:e
    check_right: "e"
    check_wrong: "g"
    script_ext: r:(?i)\.(ico|png|jpe?g|gif|webp)$
    funcname: exec,shell_exec,system,passthru,popen,proc_open
    action: BLOCK
    check_fp: no
    level: 10
    group_id: 2

- rule:
    id: 10070
    description:
     Shell exec from an application log, report or session file
    detection: c:e
    check_right: "e"
    check_wrong: "g"
    script_ext: r:.+\/var\/(log|report|session)\/
    funcname: exec,shell_exec,system,passthru,popen,proc_open
    action: BLOCK
    check_fp: no
    level: 10
    group_id: 2

- rule:
    id: 10099
    description:
     header BLOCK
    detection: c:N
    check_right: "N"
    check_wrong: "g"
    file_op_name: r:Location\:\shttp
    check_fp: no
    funcname: header
    action: BLOCK
    level: 10
    group_id: 2

# CVE-2026-15748: Forminator <= 1.56.1 lets an unauthenticated submitter pick the
# accepted filetypes, and forminator_allowed_mime_types() only unsets exact keys,
# so a pipe-alternative key ("php|x") survives the blocklist and wp_check_filetype()
# accepts .php. The name keeps its extension all the way to move_uploaded_file(),
# which the plugin calls itself -- so the drop is visible at the call site.
 - rule:
    id: 10104
    description:
     Block PHP drop via Forminator upload (CVE-2026-15748)
    detection: c:f
    check_right: "f"
    check_wrong: "g"
    script_ext: r:\/wp-content\/plugins\/forminator\/library\/(?:fields\/upload|abstracts\/abstract-class-front-action)\.php$
    check_buf: r:(?i)\.(?:php[0-9]?|phtml|phps|phar|pht|shtml|htaccess)$
    check_fp: no
    funcname: move_uploaded_file
    action: BLOCK
    level: 10
    group_id: 2

# DEF-54687: .gr_/--sc-cli WordPress dropper campaign.
# Blocks the dropper's function_exists() command-probe ladder, which walks
# proc_open -> exec -> shell_exec -> passthru -> system and takes the first
# primitive that exists. Each rung is a separate 12-slot execution-flow hash,
# so the hash database has to chase them one at a time; this rule generalises
# over all five and over any sixth rung the actors add.
#
# The ladder itself is NOT expressible here: function_exists and strpos are
# absent from `preffix:`, so they never enter the rules queue. The rule
# therefore discriminates on the dropper's file naming instead
# (.g_<8hex>.php / .gr_<md5>.php), which is what the campaign actually shares.
#
# FP screen (24h-14d, default.proactive_queue, fleet-wide, no campaign filter):
# every script matching these path shapes is campaign malware. Zero legitimate
# files fleet-wide carry a hidden hex-named .php name of this form.
#
# action: BLOCK (not KILL) is load-bearing: it sets result->block = 1
# (queue.c:3227) which clamps the enforced action down to BLOCK_FUNC, so a
# false positive suppresses one call instead of SIGKILLing the PHP worker
# (i360.c:4129) and 500-ing the visitor.
#
# check_fp: no is deliberate. The campaign lives inside wp-includes/, and the
# core-path exclusion lists would otherwise be able to neuter the rule on the
# exact directory it needs to cover.
#
# Two rules, one per observed family, rather than one combined pattern. The
# families have fixed and different hex lengths -- .g_ is always 8, .gr_ always
# 32 (52M events / 14d; the cross combinations never occur) -- so a rule per
# family both rejects shapes the campaign never produces and gives Hyperscan a
# longer literal prefix to anchor on. Keep them split, and keep the trailing $.
#
# Cost on the exec hook path, measured against master over several script-path
# shapes: +7 ns (6 ch), +34 ns (68 ch), +75 ns (134 ch), +76 ns (57 ch). It is
# per-byte scan work, so it varies with path length rather than sitting at one
# number -- an earlier revision of this comment quoted +34 ns as if it were the
# figure, which was one path, not the range. For scale, one real exec() costs
# ~1.36 ms, so this is under 0.006% of a call.
#
# These costs do NOT compose across rules: Hyperscan selects an engine for the
# whole script-pattern set, so adding DEF-54748's rule 10070 alongside this one
# measures cheaper than this rule alone on some paths (+23 ns vs +76 ns on a
# 57-char path) and worse on others (+134 ns vs +75 ns at 134 ch). Only the
# merged rule set is worth measuring; per-branch numbers are not additive.
 - rule:
    id: 10100
    description:
     SC dropper command execution blocked
    detection: c:e
    check_right: "e"
    check_wrong: "f"
    script_ext: r:\/\.g_[a-f0-9]{8}\.php$
    check_fp: no
    funcname: exec,system,passthru,shell_exec,proc_open,popen
    action: BLOCK
    level: 10
    group_id: 2

- rule:
    id: 10100
    description:
     SC dropper command execution blocked
    detection: c:e
    check_right: "e"
    check_wrong: "f"
    script_ext: r:\/\.gr_[a-f0-9]{32}\.php$
    check_fp: no
    funcname: exec,system,passthru,shell_exec,proc_open,popen
    action: BLOCK
    level: 10
    group_id: 2

###############################
# https://cloudlinux.atlassian.net/browse/DEFA-2899?focusedCommentId=190227
# Test BLOCK Rule for customers
#
###############################

- rule:
    id: 77777
    description:
     Proactive Defence test BLOCK rule
    detection: c:f
    check_right: "f"
    check_wrong: "g"
    file_op_name: s:https://secure.eicar.org/eicar.com.txt
    funcname: file_get_contents
    action: BLOCK
    level: -10
    group_id: 2

###############################
#
# KILL Rules
#
###############################

###############################
#
# Logging Rules
#
###############################

- rule:
    id: 123591
    description:
     DEF-23591 - non-php drops php
    detection: c:f
    check_right: "f"
    check_wrong: "g"
    script_ext: r:[\s\S]*\.(?!(php\d?|pht(ml)?|inc|html?)$)([^.]+$)
    file_op_name: r:[\s\S]*\.(?:php\d?|pht(ml)?)$
    funcname: file_put_contents,fopen,fwrite
    level: 10
    group_id: 2

- rule:
    id: 131315
    description:
     external malware sources lookup
    detection: c:f
    check_right: "f"
    check_wrong: "g"
    file_op_name: r:^(https?:|ftp:|zlib:)
    funcname: file_get_contents
    level: 5
    group_id: 2

- rule:
    id: 131316
    description:
     include external malware sources lookup
    detection: c:u
    check_right: "u"
    check_wrong: "g"
    file_op_name: r:^(https?:|ftp:|zlib:)
    funcname: include,include_once,require,require_once
    level: 5
    group_id: 2

- rule:
    id: 131398
    description:
     themes/plugins upload
    detection: c:f
    check_right: "f"
    check_wrong: "g"
    script_ext: s:/wp-admin/includes/file.php
    check_buf: r:\.zip$
    check_fp: no
    funcname: move_uploaded_file
    level: 10
    group_id: 2

- rule:
    id: 141499
    description:
     themes/plugins upload
    detection: c:f
    check_right: "f"
    check_wrong: "g"
    script_ext: s:/wp-admin/includes/class-wp-filesystem-direct.php
    file_op_name: r:\/wp-content\/upgrade\/
    check_fp: no
    funcname: copy
    level: 10
    group_id: 2

- rule:  
    id: 141501  
    description:
     Log all events of mail function
    detection: c:g 
    check_right: "g" 
    check_wrong: "f" 
    check_fp: no
    level: 10
    group_id: 2

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