Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
779 detections
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Detects the use of the built-in Windows utility rundll32.exe to execute comsvcs.dll with the MiniDump command to dump the memory of the Local Security Authority Subsystem Service (LSASS) process. This is a common technique used by attackers to harvest credentials from memory.
Detects unauthorized processes attempting to open handles to the Local Security Authority Subsystem Service (lsass.exe) with sensitive access rights (e.g., PROCESS_VM_READ, PROCESS_QUERY_INFORMATION). These access patterns are frequently utilized by credential dumping tools like Mimikatz, ProcDump, or malicious abuse of system utilities to extract plaintext passwords or NTLM hashes from memory.
Detects Windows Event 4662 indicating the use of DS-Replication-Get-Changes or DS-Replication-Get-Changes-All extended rights from a host that is not a known domain controller. This behavior is highly indicative of credential dumping via DCSync, commonly associated with tools like Mimikatz.
Detects the invocation of Active Directory replication rights by monitoring Event 4662 for specific directory service replication GUIDs (DS-Replication-Get-Changes, DS-Replication-Get-Changes-All). This behavior is characteristic of adversary techniques such as DCSync used by tools like Mimikatz lsadump::dcsync or Impacket secretsdump to extract domain password hashes.
Detects potential DCSync attacks by monitoring for Windows Event ID 4662 (Directory Service Access) associated with specific Directory Replication Service (DRS) extended rights GUIDs. The rule identifies accounts attempting to perform replication tasks against a Domain Controller, filtering out events originating from recognized Domain Controllers to isolate unauthorized access.
This rule detects unauthorized or suspicious processes attempting to access the memory of the Local Security Authority Subsystem Service (LSASS). It specifically targets memory access (EventID 10) with sensitive access masks (e.g., PROCESS_QUERY_LIMITED_INFORMATION, PROCESS_VM_READ) originating from processes executing from suspicious locations such as Temp, AppData, Downloads, or randomly generated executable names. This method is often used by modern credential dumpers, such as those utilizing direct or indirect syscalls, to bypass userland security hooks.
Detects the use of Mimikatz 'sekurlsa::pth' command for credential manipulation, or the occurrence of SMB/Windows administrative share access (ADMIN$, C$) potentially indicating lateral movement activities.
Detects a process obtaining handle access to the LSASS process (Sysmon Event ID 10) followed by the creation of a file (Sysmon Event ID 11) using an extension other than '.dmp'. This behavior is characteristic of adversaries attempting to obfuscate credential dumping activities by bypassing simple extension-based detection rules.
Detects unauthorized attempts to dump credentials from the Local Security Authority Subsystem Service (LSASS) process. This includes the execution of known credential-harvesting tools (e.g., Mimikatz, LaZagne, pypykatz), the use of system utilities like procdump and comsvcs.dll to dump process memory, and anomalous direct handle access to lsass.exe by non-system processes. This activity is associated with Storm-2570 post-compromise tradecraft.
Detects a hybrid identity attack sequence where an anomalous or high-risk cloud sign-in (e.g., AD FS, Azure AD Connect) is followed within 24 hours by suspicious on-premise Active Directory activity, specifically DCSync replication requests or Kerberoasting (high volume of TGS requests). This pattern is indicative of an attacker leveraging stolen cloud session tokens to pivot into on-premise infrastructure.
Detects attempts to create a memory dump of the Local Security Authority Subsystem Service (LSASS) using either the built-in 'comsvcs.dll' library via 'rundll32.exe' or by requesting specific sensitive process access rights to 'lsass.exe' from unauthorized processes.
Detects the request for DS-Replication-Get-Changes or DS-Replication-Get-Changes-All extended rights on domain objects, which are highly sensitive Active Directory permissions required to perform DCSync attacks to harvest credentials from Domain Controllers.
Detects attempts to access or dump the memory of the Local Security Authority Subsystem Service (LSASS) process, a technique commonly used by adversaries to harvest domain credentials and clear-text passwords from memory.
Detects unauthorized processes attempting to open handles to the Local Security Authority Subsystem Service (LSASS) process with access rights consistent with credential dumping (e.g., PROCESS_VM_READ, PROCESS_ALL_ACCESS). This rule also specifically flags the use of well-known tools and techniques such as Mimikatz, ProcDump, and the abuse of rundll32.exe with comsvcs.dll for memory extraction, which is indicative of OS Credential Dumping (T1003.001).
Detects potential credential dumping activity via DCSync, identified by a non-DC computer account performing directory replication (DRS GetNCChanges), correlated with subsequent suspicious Kerberos ticket requests (Event ID 4769) that utilize weak encryption (RC4 or legacy DES), which is often associated with Golden Ticket abuse.
This rule detects artifacts and command-line patterns associated with Impacket utility suite modules, specifically wmiexec.py, smbexec.py, and secretsdump.py. These tools are commonly used by adversaries for remote command execution, lateral movement, and dumping of sensitive domain or system credentials.
This rule detects unauthorized directory replication requests (DRSUAPI) using Active Directory Event ID 4662. It specifically monitors for access requests to sensitive directory replication object GUIDs (Get-Changes / Get-Changes-All) where the requesting user account is not a domain controller computer account. This behavior is a common indicator of DCSync credential dumping attacks performed by tools like Mimikatz or Impacket.
Detects credential-dumping modules (such as nanodump, hashdump, and lsadump variants) associated with AdaptixC2 framework being invoked or used by the 'mscopilot.exe' process. The rule monitors for command-line arguments indicating credential extraction, unauthorized attempts to open handle to lsass.exe, and access to sensitive registry hives (SAM, Security, LSA) by the suspect process.
Detects the use of ntdsutil.exe with arguments indicative of Install From Media (IFM) backup creation, correlated with subsequent access to the ntds.dit file on the same device within a one-hour window. This behavior is commonly associated with attackers attempting to harvest the Active Directory database for offline credential cracking.
Correlates a sequence of suspicious activities on a single host within 90 minutes: LSASS memory access consistent with credential dumping, followed by remote service or WMI-based lateral movement, and finishing with mass file renames or modifications characteristic of ransomware encryption.
Detects attempts to dump credentials from the Local Security Authority Subsystem Service (LSASS) process memory using common tools like Mimikatz, Procdump, or built-in system utilities such as comsvcs.dll or command-line arguments indicating memory dump operations.
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