""ET POLICY Observed Suspicious SSL Cert (Minerpool - CoinMining)""

SID: 2028623

Revision: 2

Class Type: policy-violation

Metadata: attack_target Client_and_Server, created_at 2019_09_25, deployment Perimeter, performance_impact Low, signature_severity Major, tag Coinminer, updated_at 2019_09_25

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: from_server,established

Contents:

  • Value: "|16|"

  • Value: "|0b|"

  • Value: "|55 04 03|"

  • Value: "|0f|eu.minerpool.pw"

  • Value: "|55 04 06|"

  • Value: "|02|US"

  • Value: "|55 04 0a|"

  • Value: "|0d|Let's Encrypt"

  • Value: "|55 04 03|"

  • Value: "|1a|Let's Encrypt Authority X3"

Within: 27

PCRE:

Special Options:

  • fast_pattern

source