""ET TROJAN StormKitty Data Exfil via Telegram""

SID: 2031009

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 2020_10_13, deployment Perimeter, deployment SSLDecrypt, malware_family StormKitty, performance_impact Low, signature_severity Major, updated_at 2020_10_13

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "Host|3a 20|api.telegram.org|0d 0a|"

  • Value: "/sendMessage?chat_id="

  • Value: "text=|0a|"

  • Value: "|20 f0 9f|"

  • Value: "*|0a|Date|3a 20|"

  • Value: "|0a|System|3a 20|"

  • Value: "|20|Bit)|0a|Username|3a 20|"

Within:

PCRE:

Special Options:

  • http_header

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

source