""ET POLICY SSL/TLS Certificate Observed (Free File Hosting Service (uplovd .com))""

SID: 2031018

Revision: 3

Class Type: policy-violation

Metadata: attack_target Client_Endpoint, created_at 2020_10_14, deployment Perimeter, performance_impact Low, signature_severity Informational, updated_at 2022_04_18

Reference:

  • md5

  • b666dc5379e31680a5621870210f0619

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|16|"

  • Value: "|0b|"

  • Value: "|06 03 55 04 03|"

  • Value: "|0e|api.uplovd.com"

  • Value: "|06 03 55 04 06|"

  • Value: "|02|US"

  • Value: "|06 03 55 04 0a|"

  • Value: "|0d|Let's Encrypt"

  • Value: "|06 03 55 04 03|"

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

Within: 27

PCRE:

Special Options:

  • fast_pattern

source