""ET TROJAN Vawtrak HTTP CnC Beacon""
SID: 2022225
Revision: 9
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2015_12_08, deployment Perimeter, performance_impact Significant, signature_severity Major, tag c2, updated_at 2024_05_01, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "POST"
-
Value: "Content-Type|3a 20|application/octet-stream|0d 0a|"
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Value: "Cookie|3a 20|PHPSESSID="
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Value: !"IBM-PROXY-WTE"
Within:
PCRE: "/^[\x20-\x7e\r\n]{0,20}[^\x20-\x7e\r\n]/P"
Special Options:
-
http_method
-
http_header
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http_header
-
nocase