""ET TROJAN Possible APT28 DOC Uploader SSL/TLS Certificate Observed""

SID: 2026539

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 2018_10_24, deployment Perimeter, signature_severity Major, tag APT28, updated_at 2018_10_24

Reference:

  • md5

  • 9b10685b774a783eabfecdb6119a8aa3

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|16|"

  • Value: "|0b|"

  • Value: "|03 04 FF 5D C9 BB AC 50 C1 7B 3E 4C 1C 68 26 15 F0 3E|"

  • Value: "|55 04 03|"

  • Value: "|0b|mvtband.net"

  • Value: "|55 04 06|"

  • Value: "|02|US"

  • Value: "|55 04 0a|"

  • Value: "|0d|Let's Encrypt"

  • Value: "|55 04 03|"

  • Value: "|1a|Let's Encrypt Authority X3"

Within: 27

PCRE:

Special Options:

  • fast_pattern

source