IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

« Security Software Discovery via Grep Sensitive Privilege SeEnableDelegationPrivilege assigned to a User »

› › ›

Sensitive Files Compression

edit

Sensitive Files Compression

edit

Identifies the use of a compression utility to collect known files containing sensitive information, such as credentials and system configurations.

Rule type: query

Rule indices:

auditbeat-*
logs-endpoint.events.*

Severity: medium

Risk score: 47

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://www.trendmicro.com/en_ca/research/20/l/teamtnt-now-deploying-ddos-capable-irc-bot-tntbotinger.html

Tags:

Elastic
Host
Linux
Threat Detection
Collection
Credential Access

Version: 2 (version history)

Added (Elastic Stack release): 7.12.0

Last modified (Elastic Stack release): 8.4.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

edit

event.category:process and event.type:start and process.name:(zip or
tar or gzip or hdiutil or 7z) and process.args: (
/root/.ssh/id_rsa or /root/.ssh/id_rsa.pub or
/root/.ssh/id_ed25519 or /root/.ssh/id_ed25519.pub or
/root/.ssh/authorized_keys or /root/.ssh/authorized_keys2 or
/root/.ssh/known_hosts or /root/.bash_history or
/etc/hosts or /home/*/.ssh/id_rsa or
/home/*/.ssh/id_rsa.pub or /home/*/.ssh/id_ed25519 or
/home/*/.ssh/id_ed25519.pub or /home/*/.ssh/authorized_keys or
/home/*/.ssh/authorized_keys2 or /home/*/.ssh/known_hosts or
/home/*/.bash_history or /root/.aws/credentials or
/root/.aws/config or /home/*/.aws/credentials or
/home/*/.aws/config or /root/.docker/config.json or
/home/*/.docker/config.json or /etc/group or /etc/passwd
or /etc/shadow or /etc/gshadow )

Threat mapping

edit

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
Technique:
- Name: Unsecured Credentials
- ID: T1552
- Reference URL: https://attack.mitre.org/techniques/T1552/
Tactic:
- Name: Collection
- ID: TA0009
- Reference URL: https://attack.mitre.org/tactics/TA0009/
Technique:
- Name: Archive Collected Data
- ID: T1560
- Reference URL: https://attack.mitre.org/techniques/T1560/

Rule version history

edit

Version 2 (8.4.0 release)

Formatting only

« Security Software Discovery via Grep Sensitive Privilege SeEnableDelegationPrivilege assigned to a User »