""ET TROJAN JS/Unk Downloader 0 Byte POST CnC Checkin""

SID: 2026760

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 2019_01_07, deployment Perimeter, performance_impact Low, signature_severity Major, tag Downloader, tag JavaScript, updated_at 2019_01_07

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "POST" Depth: 4

  • Value: "User-Agent|3a 20|xmsSofts_1.0.0_"

  • Value: "|5c 0d 0a|"

  • Value: "Content-Length|3a 20|0|0d|"

  • Value: !"|0d 0a|Referer|3a|"

Within:

PCRE:

Special Options:

source