[New Rule] Sensitive Files Compression (#756)

* [New Rule] Sensitive Files Compression * conv to kql * Update rules/linux/credential_access_collection_sensitive_files.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> * Update rules/linux/credential_access_collection_sensitive_files.toml Co-authored-by: Andrew Pease <7442091+peasead@users.noreply.github.com> * Update rules/linux/credential_access_collection_sensitive_files.toml Co-authored-by: Andrew Pease <7442091+peasead@users.noreply.github.com> * Update rules/linux/credential_access_collection_sensitive_files.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> Co-authored-by: Andrew Pease <7442091+peasead@users.noreply.github.com> Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com>
2021-02-08 16:31:00 +01:00
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commit 82fe227030
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+[metadata]
+creation_date = "2020/12/22"
+maturity = "production"
+updated_date = "2020/12/22"
+
+[rule]
+author = ["Elastic"]
+description = """
+Identifies the use of a compression utility to collect known files containing sensitive information, such as credentials
+and system configurations.
+"""
+from = "now-9m"
+index = ["auditbeat-*", "logs-endpoint.events.*"]
+language = "kuery"
+license = "Elastic License"
+name = "Sensitive Files Compression"
+references = [
+    "https://www.trendmicro.com/en_ca/research/20/l/teamtnt-now-deploying-ddos-capable-irc-bot-tntbotinger.html",
+]
+risk_score = 47
+rule_id = "6b84d470-9036-4cc0-a27c-6d90bbfe81ab"
+severity = "medium"
+tags = ["Elastic", "Host", "Linux", "Threat Detection", "Collection", "Credential Access"]
+type = "query"
+
+query = '''
+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
+    )
+'''
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1552"
+name = "Unsecured Credentials"
+reference = "https://attack.mitre.org/techniques/T1552/"
+[[rule.threat.technique.subtechnique]]
+id = "T1552.001"
+name = "Credentials In Files"
+reference = "https://attack.mitre.org/techniques/T1552/001/"
+
+
+
+[rule.threat.tactic]
+id = "TA0006"
+name = "Credential Access"
+reference = "https://attack.mitre.org/tactics/TA0006/"
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1560"
+name = "Archive Collected Data"
+reference = "https://attack.mitre.org/techniques/T1560/"
+[[rule.threat.technique.subtechnique]]
+id = "T1560.001"
+name = "Archive via Utility"
+reference = "https://attack.mitre.org/techniques/T1560/001/"
+
+
+
+[rule.threat.tactic]
+id = "TA0009"
+name = "Collection"
+reference = "https://attack.mitre.org/tactics/TA0009/"