""ET TROJAN WhiteSnake Stealer Telegram Checkin""

SID: 2045869

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_05_25, deployment Perimeter, deployment SSLDecrypt, malware_family Gurcu, malware_family WhiteSnake, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_05_25, reviewed_at 2024_06_28

Reference:

  • md5

  • fdb8081ac26d8de3f7582b2616bcf3e8

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: "/bot" Depth: 4

  • Value: "/sendMessage?chat_id="

  • Value: "|26|text|3d|"

  • Value: "Beacon"

  • Value: "OS|3a|"

  • Value: "Country|3a|"

  • Value: "Username|3a|"

  • Value: "Compname|3a|"

  • Value: "|26|reply|5f|markup|3d|"

  • Value: "Download|22 2c 22|url|22 3a|"

  • Value: "api.telegram.org"

  • Value: !"User-Agent|3a 20|"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+api.telegram.org/Hmi"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • fast_pattern

  • http_header

  • http_header

source