""ET TROJAN Win32/Phorpiex UDP Peer-to-Peer CnC""

SID: 2044077

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2023_02_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_02_02

Reference:

  • md5

  • 461f422870426748cc3e24111532472b

Protocol: udp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 40500

Flow:

Contents:

  • Value: "|20 00 00 00|" Depth: 4

Within:

PCRE: "/^[\x20-\x7e\r\n]{0,13}[^\x20-\x7e\r\n]/R"

Special Options:

  • fast_pattern

source