""ET TROJAN Arechclient2 Backdoor CnC Keep-Alive""

SID: 2029219

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 2020_01_02, deployment Perimeter, malware_family Arechclient2, signature_severity Major, updated_at 2020_01_02, reviewed_at 2024_05_06

Reference:

  • md5

  • 4ccba79d95dfd7d87b43643058e1cdd0

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "|7b 22 54 79 70 65 22 3a 22 53 65 73 73 69 6f 6e 49 44 22 2c 22 53 65 73 73 69 6f 6e 49 44 22 3a 22|" Depth: 50

  • Value: "|7d|"

Within:

PCRE:

Special Options:

  • fast_pattern

source