""ET TROJAN ELF/Chacha.DDoS/Xor.DDoS Stage 2 CnC Checkin""

SID: 2026523

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Linux, created_at 2018_10_18, deployment Perimeter, malware_family ChaChaDDoS, malware_family XorDDoS, performance_impact Low, signature_severity Major, tag DDoS, updated_at 2018_10_18

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "POST|20 2f|" Depth: 6

  • Value: "|0d 0a|Connection|3a 20|close,|20|TE|0d 0a|"

  • Value: "|0d 0a|User-Agent|3a 20|LuaSocket|20|"

  • Value: "|0d 0a|TE|3a 20|"

  • Value: "|0d 0a 0d 0a|macaddress="

  • Value: "&device="

  • Value: "&type="

  • Value: "&version="

  • Value: !"|0d 0a|Referer|3a|"

Within:

PCRE:

Special Options:

  • fast_pattern

source