""ET TROJAN DADJOKE/Rail Tycoon Payload Extraction""

SID: 2028964

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_11_12, deployment Perimeter, malware_family APT_40, signature_severity Major, updated_at 2020_11_11

Reference:

• md5

• 4c89d5d8016581060d9781433cfb0bb5

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

• Value: "GET"

• Value: "/index.html?a=exe"

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

Within:

PCRE: "/^Connection[^\r\n]+\r\nAccept[^\r\n]+\r\nUser-Agent[^\r\n]+\r\nHost\x3a\x20(?:\d{1,3}.){3}\d{1,3}\r\n(?:\r|\n)+$/H"

Special Options:

• http_method

• http_uri

• fast_pattern

• http_header

source