""ET TROJAN Known Sinkhole Response Header INetSim""

SID: 2025585

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_05_25, deployment Perimeter, signature_severity Major, updated_at 2022_05_03

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

• Value: "Content-Type|3a 20|x-msdos-program"

• Value: "MZ|0a|Sinkholed|0a|" Depth: 13

Within:

PCRE:

Special Options:

• http_header

• file_data

• fast_pattern

source