""ET TROJAN IceApple User-Agent observed""

SID: 2036602

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Server, created_at 2022_05_17, deployment Perimeter, deployment SSLDecrypt, malware_family IceApple, performance_impact Low, signature_severity Major, updated_at 2022_05_17

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "Microsoft Office/16.0 |28|Windows NT 10.0|3b 20|Microsoft Outlook 16.0.4551|3b 20|Pro|29|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^User-Agent\x3a\x20[^\r\n]+Microsoft Office\/16.0 \x28Windows NT 10.0\x3b Microsoft Outlook 16.0.4551\x3b Pro\x29/Hmi"

Special Options:

  • http_header

  • http_header

source