""ET TROJAN Ttint XORed CnC Checkin""

SID: 2030924

Revision: 2

Class Type: trojan-activity

Metadata: affected_product IoT, created_at 2020_09_30, deployment Perimeter, malware_family Ttint, performance_impact Low, signature_severity Major, updated_at 2020_09_30

Reference:

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: "|a1 8a ee 02 e8 91 ff 04 be ac f7 09 b3 9c|"

Offset: 8

  • Value: "Connection|3a 20|Upgrade"

Within:

PCRE:

Special Options:

  • http_method

  • http_client_body

  • fast_pattern

  • http_header

source