""ET TROJAN eCh0raix/QNAPCrypt Successful Server Response""

SID: 2027705

Revision: 1

Class Type: trojan-activity

Metadata: attack_target IoT, created_at 2019_07_11, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2019_07_11

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "HTTP/1.1 200 OK|0d 0a|" Depth: 17

  • Value: "Content-Type|3a 20|application/json"

  • Value: "|7b 22|RsaPublicKey|22 3a 22|-----BEGIN RSA PUBLIC KEY"

  • Value: "|22 7d 2c 7b 22|BtcPublicKey|22 3a 22|"

  • Value: "|22 7d 2c 7b 22|Readme|22 3a 22|"

Within:

PCRE:

Special Options:

  • fast_pattern

source