SID: 2039015

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_09_28, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2022_09_28

Reference:

  • md5

  • fc4106f71cdcdf6d6fab5441a6c6d7fb

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET //telemetry.svc?action=" Depth: 27

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/User-Agent\x3a\x20[^\r\n]+\r\nDNT\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+[\r\n]+$/Hm"

Special Options:

  • fast_pattern

  • http_header

source