""ET TROJAN Bitter APT Payload Request""

SID: 2037809

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2022_07_22, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2022_07_22

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "/extr/wave.php?st=" Depth: 18

  • Value: "|2a|"

  • Value: "User-Agent|3a 20|Windows Installer|0d 0a|"

Within:

PCRE:

Special Options:

  • http_uri

  • http_uri

  • http_header

source