""ET TROJAN TyphonStealer Exfil via Telegram""

SID: 2044966

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_17, deployment Perimeter, deployment SSLDecrypt, malware_family TyphoonStealer, signature_severity Major, updated_at 2023_04_17

Reference:

  • md5

  • 8581eae9949adfdce9a7bf6ae5ae0141

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: "|0a 0a f0 9f 91 a4 20|User|20|details|3a 0a|Date|3a|"

  • Value: "|0a 0a f0 9f a5 b7 20|System|20|info|3a 0a|"

  • Value: "Network|20|Details|3a|"

  • Value: "Location|20|Details|3a|"

  • Value: "Important|20|Details|3a|"

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

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • nocase

  • fast_pattern

  • http_uri

  • http_uri

  • nocase

  • http_uri

  • nocase

  • http_uri

  • nocase

  • http_header

source