""ET TROJAN Win32/Sventore.B CnC Checkin""

SID: 2043455

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_01_23, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2023_01_23, reviewed_at 2024_08_19

Reference:

  • md5

  • 0b14251c628fa7b8f7effc092acfbed0

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|DownloadMR|2f|"

  • Value: "|3b 20|m|3d|"

  • Value: "|3b 20|u|3d|"

  • Value: "aurora|29 0d 0a|"

  • Value: "POST /|20|"

Within:

PCRE: "/^Content-Type\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\nContent-Length\x3a\x20[^\r\n]+\r\nCache-Control\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_header

  • fast_pattern

  • http_header

  • http_header

  • http_header

source