trAvis - MANAGER

Edit File: modsecurity_crs_45_trojans.conf

# --------------------------------------------------------------- # Core ModSecurity Rule Set ver.2.2.9 # Copyright (C) 2006-2012 Trustwave All rights reserved. # # The OWASP ModSecurity Core Rule Set is distributed under # Apache Software License (ASL) version 2 # Please see the enclosed LICENCE file for full details. # --------------------------------------------------------------- # The trojan access detection rules detects access to known Trojans already # installed on a server. Uploading of Trojans is part of the Anti-Virus rules # and uses external Anti Virus program when uploading files. # # Detection of Trojans access is especially important in a hosting environment # where the actual Trojan upload may be done through valid methods and not # through hacking. # -- # # NOTE Trojans detection is based on checking elements controlled by the client. # A determined attacked can bypass those checks. We are working on # enchaining the checks so it would require a major change in the Trojan # to overcome. # # NOTE We found out that Trojan horses are not detected easily by Anti-Virus # software when uploading as the signature set of AV software is not tuned # for this purpose. We are working on adding signature tuned to detect # Trojans upload to file uploading inspection. # SecRule REQUEST_HEADERS_NAMES "x_(?:key|file)\b" "phase:2,rev:'2',ver:'OWASP_CRS/2.2.9',maturity:'9',accuracy:'9',t:none,t:lowercase,ctl:auditLogParts=+E,block,msg:'Backdoor access',logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',capture,id:'950110',tag:'OWASP_CRS/MALICIOUS_SOFTWARE/TROJAN',tag:'WASCTC/WASC-01',tag:'OWASP_TOP_10/A7',tag:'PCI/5.1.1',severity:'2',setvar:'tx.msg=%{rule.msg}',setvar:tx.trojan_score=+1,setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},setvar:tx.%{rule.id}-OWASP_CRS/MALICIOUS_SOFTWARE/TROJAN-%{matched_var_name}=%{matched_var}" SecRule REQUEST_FILENAME "root\.exe" \ "phase:2,rev:'2',ver:'OWASP_CRS/2.2.9',maturity:'9',accuracy:'9',t:none,t:urlDecodeUni,t:htmlEntityDecode,t:lowercase,ctl:auditLogParts=+E,block,msg:'Backdoor access',logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',capture,id:'950921',tag:'OWASP_CRS/MALICIOUS_SOFTWARE/TROJAN',tag:'WASCTC/WASC-01',tag:'OWASP_TOP_10/A7',tag:'PCI/5.1.1',severity:'2',setvar:'tx.msg=%{rule.msg}',setvar:tx.trojan_score=+1,setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},setvar:tx.%{rule.id}-OWASP_CRS/MALICIOUS_SOFTWARE/TROJAN-%{matched_var_name}=%{matched_var}" SecRule RESPONSE_BODY "(?:<title>[^<]*?(?:\b(?:(?:c(?:ehennemden|gi-telnet)|gamma web shell)\b|imhabirligi phpftp)|(?:r(?:emote explorer|57shell)|aventis klasvayv|zehir)\b|\.::(?:news remote php shell injection::\.| rhtools\b)|ph(?:p(?:(?: commander|-terminal)\b|remoteview)|vayv)|myshell)|\b(?:(?:(?:microsoft windows\b.{0,10}?\bversion\b.{0,20}?\(c\) copyright 1985-.{0,10}?\bmicrosoft corp|ntdaddy v1\.9 - obzerve \| fux0r inc)\.|(?:www\.sanalteror\.org - indexer and read|haxplor)er|php(?:konsole| shell)|c99shell)\b|aventgrup\.<br>|drwxr))" \ "phase:4,rev:'2',ver:'OWASP_CRS/2.2.9',maturity:'8',accuracy:'8',t:none,ctl:auditLogParts=+E,block,msg:'Backdoor access',logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',capture,id:'950922',tag:'OWASP_CRS/MALICIOUS_SOFTWARE/TROJAN',tag:'WASCTC/WASC-01',tag:'OWASP_TOP_10/A7',tag:'PCI/5.1.1',severity:'2',setvar:'tx.msg=%{rule.msg}',setvar:tx.trojan_score=+1,setvar:tx.anomaly_score=+%{tx.error_anomaly_score},setvar:tx.%{rule.id}-OWASP_CRS/MALICIOUS_SOFTWARE/TROJAN-%{matched_var_name}=%{matched_var}"