""ET TROJAN [PTsecurity] Ursnif Encoded Payload Inbound""

SID: 2024837

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 2017_10_12, deployment Perimeter, malware_family ursnif, performance_impact Low, signature_severity Major, updated_at 2017_10_12

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "|3d fa 61 3c 79 ee de ea 18 90 08 95 55 44 8d 41|" Depth: 16

Within:

PCRE:

Special Options:

  • http_stat_code

  • file_data

  • fast_pattern

source