""ET TROJAN Camaro Dragon APT - Horse Shell CnC Checkin""

SID: 2045753

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Router, attack_target IoT, created_at 2023_05_17, deployment Perimeter, malware_family Horse_Shell, confidence High, signature_severity Major, updated_at 2023_05_17

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/index.php"

  • Value: "Mozilla/4.0|20 28|compatible|3b 20|MSIE 8.0|3b 20|Windows NT 6.1|3b 20|Trident/4.0|3b 20|qdesk 2.4.1265.203|3b 20|SLCC2|3b 20 2e|NET CLR 2.0.50727|3b 20 2e|NET CLR 3.5.30729|3b 20 2e|NET CLR 3.0.30729|3b 20|InfoPath.3|29|"

Within:

PCRE: "/^Accept\x3a\x20[^\r\n]+\r\nAccept-Language\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+\r\nAccept-Encoding\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • http_uri

  • http_header

source