Query: alert when Monitor and alert for device registration or join events where MFA was not performed.
Matching passage: Sigma rule: Monitor and alert for device registration or join events where MFA was not performed.. Logsource: azure / signinlogs. Rule: title: Device Registration or Join Without MFA id: 5afa454e-030c-4ab4-9253-a90aa7fcc581 status: test description: Monitor and alert for device registration or join events where MFA was not performed. references: - https://learn.microsoft.com/en-us/entra/architecture/security-operations-devices#device-registrations-and-joins-outside-policy author: Michael Epping, '@mepples21' date: 2022-06-28 tags: - attack.privilege-escalation - attack.persistence - attack.initial-access - attack.stealth - attack.t1078.004 logsource: product: azure service: signinlogs detection: selection: ResourceDisplayName: Device Registration Service conditionalAccessStatus: success filter_mfa: AuthenticationRequirement: multiFactorAuthentication condition: selection and not filter_mfa falsepositives: - Unknown level: medium
Near-miss passage: Sigma rule: Detects binaries that use the same name as legitimate sysinternals tools to evade detection. This rule looks for the exe. Logsource: windows / process_creation. Rule: title: Potential Binary Impersonating Sysinternals Tools id: 7cce6fc8-a07f-4d84-a53e-96e1879843c9 status: test description: 'Detects binaries that use the same name as legitimate sysinternals tools to evade detection. This rule looks for the execution of binaries that are named similarly to Sysinternals tools. Adversary may rename their malicious tools as legitimate Sysinternals tools to evade detection. ' references: - https://learn.microsoft.com/en-us/sysinternals/downloads/sysinternals-suite author: frack113, Swachchhanda Shrawan Poudel (Nextron Systems) date: 2021-12-20 modified: 2025-04-12 tags: - attack.execution - attack.stealth - attack.t1218 - attack.t1202 - attack.t1036.005 logsource: category: process_creation product: windows detection: selection_exe: Image|endswith: - \accesschk.exe - \accesschk64.exe - \AccessEnum.exe - \ADExplorer.exe - \ADExplorer64.exe - \ADInsight.exe - \ADInsight64.exe - \adrestore.exe - \adrestore64.exe - \Autologon.exe - \Autologon64.exe - \Autoruns.exe - \Autoruns64.exe - \autorunsc.exe - \autorunsc64.exe - \Bginfo.exe - \Bginfo64.exe - \Cacheset.exe - \Cacheset64.exe - \Clockres.exe - \Clockres64.exe - \Contig.exe - \Contig64.exe - \Coreinfo.exe - \Coreinfo64.exe - \CPUSTRES.EXE - \CPUSTRES64.EXE - \ctrl2cap.exe - \Dbgview.exe - \dbgview64.exe - \Desktops.exe - \Desktops64.exe - \disk2vhd.exe - \disk2vhd64.exe - \diskext.exe - \diskext64.exe - \Diskmon.exe - \Diskmon64.exe - \DiskView.exe - \DiskView64.exe - \du.exe - \du64.exe - \efsdump.exe - \FindLinks.exe - \FindLinks64.exe - \handle.exe - \handle64.exe - \hex2dec.exe - \hex2dec64.exe - \junction.exe - \junction64.exe - \ldmdump.exe - \listdlls.exe - \listdlls64.exe - \livekd.exe - \livekd64.exe - \loadOrd.exe - \loadOrd64.exe - \loadOrdC.exe - \loadOrdC64.exe - \logonsessions.exe - \logonsessions64.exe - \movefile.exe - \movefile64.exe - \notmyfault.exe - \notmyfault64.exe - \notmyfaultc.exe - \notmyfaultc64.exe - \ntfsinfo.exe - \ntfsinfo64.exe - \pendmoves.exe - \pendmoves64.exe - \pipelist.exe - \pipelist64.exe - \portmon.exe - \procdump.exe - \procdump64.exe - \procexp.exe - \procexp64.exe - \Procmon.exe - \Procmon64.exe - \psExec.exe - \psExec64.exe - \psfile.exe - \psfile64.exe - \psGetsid.exe - \psGetsid64.exe - \psInfo.exe - \psInfo64.exe - \pskill.exe - \pskill64.exe - \pslist.exe - \pslist64.exe - \psLoggedon.exe - \psLoggedon64.exe - \psloglist.exe - \psloglist64.exe - \pspasswd.exe - \pspasswd64.exe - \psping.exe - \psping64.exe - \psService.exe - \p