""ET TROJAN Win32/Delf.TJJ CnC Checkin M1""

SID: 2037107

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_06_24, deployment Perimeter, malware_family Delf_TJJ, performance_impact Low, signature_severity Major, updated_at 2022_06_24

Reference:

  • md5

  • 2e7b9acaf5725c84c9ec9687af15d48e

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: "/index/getcfg?id="

  • Value: "User-Agent|3a 20|Mozilla/3.0|20 28|compatible|3b 20|Indy Library|29|"

  • Value: !"Referer|3a 20|"

Within:

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

Special Options:

  • http_method

  • fast_pattern

  • http_header

  • http_header

source