Wiki source code of ASR-Regeln: Die Ereignis-ID’s 1121 und 1122 treten in Verbindung mit einer lsass.exe auf und blockieren den Vorgang
Last modified by Sabrina V. on 2024/10/23 06:23
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| 1 | {{aagon.priorisierung}} | ||
| 2 | 10 | ||
| 3 | {{/aagon.priorisierung}} | ||
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| 5 | When the agent service is restarted, the threats or alerts with Event IDs 1121 and 1122 may be triggered on the agent. | ||
| 6 | These events occur because the ASR rule „[['Block the theft of Windows Local Security Authority credentials'>>doc:ACMP.67.ACMP-Solutions.Security.Defender Management.Konfigurationsprofile.Konfigurationsprofil-Einstellungen.WebHome]]“ intervenes. This rule prevents direct access to LSASS memory by untrusted processes. So if a process tries to access LSASS using the OpenProcess() function with PROCESS_VM_READ permissions, the ASR rule will block that access. | ||
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| 8 | {{figure}} | ||
| 9 | [[image:ereigniseigenschaften_1121_zoom80.png||data-xwiki-image-style-alignment="center"]] | ||
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| 11 | {{figureCaption}} | ||
| 12 | Event properties - Event 1121 | ||
| 13 | {{/figureCaption}} | ||
| 14 | {{/figure}} | ||
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| 16 | You can work around this blockage by adding lsass.exe as either an entire directory or file path in //Configuration Profiles// > //ASR Rule Exclusions//. Then select the //Exclude files and paths from ASR rules// checkbox. |