""ET TROJAN Win32/Agent.WVW CnC Beacon 1""

SID: 2021257

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2015_06_11, deployment Perimeter, signature_severity Major, tag c2, updated_at 2015_06_11, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

  • md5

  • 1de834aca8905124e1abcd4f71dea062

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: "/s?" Depth: 3

  • Value: "|3b|"

  • Value: "|3b|"

  • Value: "."

  • Value: "_"

Within: 2

PCRE: "/^\/s\?\d+\x3b\d+\x3b\d{1,2}.\d_(?:32|64)_\d+(?:\x3b\d+){4}$/U"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_uri

  • http_uri

source