""ET TROJAN Observed AHK Downloader Request Structure""

SID: 2028956

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 2019_11_08, deployment Perimeter, performance_impact Moderate, signature_severity Minor, tag Downloader, updated_at 2019_11_08

Reference:

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: "/traff.php"

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

Within:

PCRE: "/User-Agent\x3a\x20AutoHotkey\x0d\x0aConnection\x3a\x20[^\r\n]+\r\nCache-Control\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\n\r\n$/Hm"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

source