""ET TROJAN Win32/RiskWare.YouXun.AD CnC Activity""

SID: 2032977

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_05_18, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_05_18

Reference:

  • md5

  • 2292c6acb1e5f139900b9d1942b14b08

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: "?sc="

  • Value: !"&"

  • Value: "User-Agent|3a 20|Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31|0d 0a|"

  • Value: "Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_header

  • http_header

source