""ET CURRENT_EVENTS Spelevo VBS Payload Downloaded""

SID: 2028865

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_10_18, deployment Perimeter, malware_family Spelevo_EK, signature_severity Major, tag Spelevo_EK, updated_at 2019_11_15

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: "&00000111&11"

• Value: "Content-Length|3a 20|0|0d 0a|"

Within:

PCRE: "/^Host[^\r\n]+\r\nContent-Length[^\r\n]+\r\nCache-Control[^\r\n]+\r\nCookie[^\r\n]+\r\n/Hmi"

Special Options:

• http_method

• http_uri

• fast_pattern

• http_header

source