""ET TROJAN Microsoft Outlook Requesting .rtf""

SID: 2055081

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_08_08, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, updated_at 2024_08_08

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: "|2e|rtf"

• Value: "User-Agent|3a 20|Mozilla|2f|4|2e|0|20 28|compatible|3b 20|MSIE|20|7|2e|0|3b 20|Windows|20|NT"

• Value: "ms|2d|office|3b 20|MSOffice"

• Value: !"Referer|3a 20|"

Within:

PCRE: "/|2e|rtf$/U"

Special Options:

• http_method

• http_uri

• fast_pattern

• http_header

• http_header

source