""ET TROJAN Possibly Malicious Base64 Unicode WebClient DownloadString M3""

SID: 2023943

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 2017_02_16, deployment Perimeter, signature_severity Major, updated_at 2017_11_16

Reference:

  • md5

  • 2a0df97277ddb361cecf8726df6d78ac

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "XAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAFMAdAByAGkAbgBn"

Within:

PCRE:

Special Options:

  • file_data

source