""ET TROJAN Malvirt/KoiVM Downloader Variant Payload Retrieval Request""
SID: 2044003
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_01_26, deployment Perimeter, performance_impact Significant, confidence High, signature_severity Major, updated_at 2023_02_10
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: any
Flow: established, to_server
Contents:
- Value: "get_" Depth: 4
Within:
PCRE: "/^[a-f0-9]{32}\x0d\x0a$/R"
Special Options:
- fast_pattern