""ET TROJAN W32/Ferret DDOS Bot CnC Beacon 2""
SID: 2017917
Revision: 4
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2014_01_03, deployment Perimeter, signature_severity Major, tag c2, updated_at 2014_01_15, 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:
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Value: "POST"
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Value: "User-Agent|3a 20|Mozilla|20|"
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Value: "m" Depth: 1
Within:
PCRE: "/^m(?:ode)?=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})&h(?:wid)?=/P"
Special Options:
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http_method
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fast_pattern
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http_header
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http_client_body