""ET MALWARE W32/Eorezo.Adware CnC Beacon""

SID: 2016546

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2013_03_07, deployment Perimeter, signature_severity Major, tag c2, updated_at 2019_08_14, 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: "/cgi-bin/advert/settags?x_mode="

  • Value: "&x_format="

  • Value: "&x_pub_id="

  • Value: "&tag="

  • Value: "User-Agent|3A| Mozilla/4.0 (compatible|3B| Win32|3B| WinHttp.WinHttpRequest.5)"

Within:

PCRE:

Special Options:

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_header

source