""ET TROJAN Vawtrak/NeverQuest CnC Beacon""
SID: 2025089
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2015_08_25, deployment Perimeter, former_category MALWARE, signature_severity Major, tag c2, updated_at 2020_10_01, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel
Reference:
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md5
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1b820dda5833f802be829d468884884e
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "POST"
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Value: ".php?"
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Value: "/0"
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Value: "=0000"
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Value: "=?"
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Value: !"Referer|3a|"
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Value: "Accept"
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Value: "Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"
Within:
PCRE: "/.php\?[a-z]+=0000[a-fA-F0-9]{4}&[a-z]+=\?[A-F0-9]+&[a-z]=\d{4}&[a-z]=\d{4}$/U"
Special Options:
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http_method
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http_uri
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http_uri
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http_uri
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http_uri
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http_header
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http_header
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http_header