""ET TROJAN Matiex Keylogger Exfil Via Telegram""

SID: 2030633

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_07_31, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, updated_at 2020_07_31

Reference:

• md5

• 1275d29213c2580894371739beb16148

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "POST"

• Value: "/sendDocument?chat_id="

• Value: "|20|Matiex|20|Keylogger|20|"

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

• Value: "Content-Disposition|3a 20|form-data|3b 20|name=|22|document|22 3b 20|filename=|22|MatiexPasswords.txt|22 0d 0a|"

Within:

PCRE:

Special Options:

• http_method

• http_uri

• http_uri

• fast_pattern

• http_header

• http_client_body

source