""ET TROJAN Win32/Snojan Variant Sending System Information (GET)""

SID: 2044258

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_02_21, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, updated_at 2023_02_21

Reference:

  • md5

  • 8313df7915e10fde7b3ee4bbddce4f31

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: ".php?payload1=NetBios|25 32 30|name|3a 25 32 30|"

  • Value: "GET"

  • Value: ".php?payload1=NetBios|25 32 30|name|3a 25 32 30|"

  • Value: "&payload2=Username|3a 25 32 30|"

  • Value: "&payload3=Operating|25 32 30|system|3a 25 32 30|"

  • Value: "&payload4=Local|25 32 30|IP|3a 25 32 30|"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • http_raw_uri

  • http_raw_uri

  • http_raw_uri

  • http_raw_uri

source