diff --git a/rules/windows/builtin/smbclient/win_susp_failed_hidden_share_mount.yml b/rules/windows/builtin/smbclient/win_susp_failed_hidden_share_mount.yml new file mode 100644 index 000000000..fd5cdf40b --- /dev/null +++ b/rules/windows/builtin/smbclient/win_susp_failed_hidden_share_mount.yml @@ -0,0 +1,28 @@ +title: Failed Mounting of Hidden Share +id: 1c3be8c5-6171-41d3-b792-cab6f717fcdb +description: Detects repeated failed (outgoing) attempts to mount a hidden share +author: Fabian Franz +status: experimental +level: medium +references: + - https://twitter.com/moti_b/status/1032645458634653697 + - https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Cyber-Security/SiSyPHuS/AP10/Logging_Configuration_Guideline.pdf?__blob=publicationFile&v=5 +date: 2022/08/30 +modified: 2022/08/30 +logsource: + product: windows + service: smbclient-security +detection: + selection: + EventID: 31010 + ShareName|endswith: '$' + timeframe: 1m + condition: selection | count() > 10 +fields: + - ShareName +falsepositives: + - Legitimate administrative activity + - Faulty scripts +tags: + - attack.t1021.002 + - attack.lateral_movement