""ET TROJAN Dooptroop CnC Beacon""
SID: 2014112
Revision: 3
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2012_01_10, deployment Perimeter, signature_severity Major, tag c2, updated_at 2017_01_18, 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: "GET"
-
Value: ".php?num="
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Value: "&rev="
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Value: !"Referer|3a|"
Within:
PCRE: "/^\/[a-z]+.php\?num=\d+&rev=/U"
Special Options:
-
http_method
-
http_uri
-
fast_pattern
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http_uri
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http_header