""ET TROJAN HTA.BabyShark Checkin""

SID: 2027365

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_05_20, deployment Perimeter, malware_family BabyShark, signature_severity Major, updated_at 2019_05_20

Reference:

  • md5

  • 94b60cf91e550e1d981aaf9962d52e18

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/expres.php?op="

  • Value: "Mozilla/4.0 (compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest.5)"

Within:

PCRE: "/\/expres.php\?op=\d$/U"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

source