""ET TROJAN Golang/Linux Kaiji Variant Activity""

SID: 2044667

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Linux_Unix, created_at 2023_03_17, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2023_03_17

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 1024:

Flow: established,to_server

Contents:

  • Value: "|5e 57 26 61 37 72 25 38 67 50 33 71 38 49 6e 6d 70 42 52 63 25 73 67 43 64 6f 7a 54 74 32 34 72 66 69 32 58 35 45 38 54 6b 75 48 23 5a 30 4d 35 57 45|" Depth: 50

Within:

PCRE:

Special Options:

  • fast_pattern

source