SID: 2044932

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_04_13, deployment Perimeter, performance_impact Moderate, signature_severity Major, updated_at 2023_04_14

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 1024:

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "|3b 20|WinHttp.WinHttpRequest."

Within:

PCRE: "/^Connection\x3a\x20[^\r\n]+\r\nAccept\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • fast_pattern

  • http_header

source