""ET TROJAN Win32/Malgent!MSR User-Agent""

SID: 2033747

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_08_19, deployment Perimeter, signature_severity Major, updated_at 2021_08_19

Reference:

  • md5

  • 4c1e57a0388a703307319d17ae5e9039

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "User-Agent|3a 20|Not a Virus Download A|0d 0a|"

  • Value: !"Referer|3a 20|"

Within:

PCRE:

Special Options:

  • fast_pattern

  • http_header

  • http_header

source