Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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The analytic detects instances where the Windows InstallUtil.exe binary loads `vaultcli.dll` and `Samlib.dll`. This activity is significant because it can indicate an attempt to execute code that bypasses application control and captures credentials using tools like Mimikatz. If confirmed malicious, this behavior could allow an attacker to steal credentials, potentially leading to unauthorized access and further compromise of the system.
Detects process access requests to the LSASS process with specific call trace calls and access masks. This behavior is expressed by many credential dumping tools such as Mimikatz, NanoDump, Invoke-Mimikatz, Procdump and even the Taskmgr dumping feature.
This rule detects highly relevant antivirus events in the Windows Application log by looking for specific keywords associated with known virus signatures, malware, and offensive security tools. It aims to identify instances where an antivirus product has detected or quarantined malicious software or activity.
This rule detects the creation of a named file stream (Alternate Data Stream - ADS) containing specific Imphash values associated with known hack tools. The Imphash values are for tools such as Mimikatz, PetitPotam, JuicyPotato, RoguePotato, Pwdump, Cobalt Strike beacons, NanoDump, HandleKatz, DripLoader, UACMe, Dumpert, EDRSandBlast, and others. Adversaries often use ADSs to hide malicious executables or data to evade detection by traditional security tools that may not scan alternate data streams.
Detects highly relevant antivirus alerts indicating the presence of hack tools or other attack tools. This rule emphasizes that even if the antivirus blocks the malware, the event requires investigation to understand how the tool initially compromised the system.
Detects a highly relevant Antivirus alert that reports a password dumper. This event must not be ignored just because the AV has blocked the malware but investigate, how it came there in the first place.
Detects process access requests from known hacktool processes based on their executable names. This rule targets a wide range of tools commonly used for credential dumping, privilege escalation, and other malicious activities, including Mimikatz, various Potato exploits, and other offensive security tools. The detection focuses on the 'SourceImage' field, indicating the process initiating the access.
Detects suspicious process access requests to the LSASS process using specific GrantedAccess flags. These flags are often associated with tools and techniques used for credential dumping, such as Mimikatz, by attempting to read or manipulate LSASS memory to extract credentials. The rule includes filters for common legitimate processes like antivirus software, EDRs, and system utilities to reduce false positives.
Detects process access requests from hacktool processes based on their default image name
This rule detects Mimikatz DCSync activity by monitoring Windows Security Event ID 4662. Specifically, it looks for access attempts to replicate directory changes (identified by specific GUIDs) with an AccessMask of '0x100'. To reduce false positives, it filters out activity from 'Window Manager' and service accounts starting with 'NT AUT', 'MSOL_', or ending with '$'.
This rule detects attempts to exploit the Zerologon vulnerability (CVE-2020-1472) using tools like Mimikatz or other exploits originating from a machine with 'kali' in its hostname. It specifically looks for Windows System event IDs 5805 or 5723 in conjunction with the keywords 'kali' or 'mimikatz'.
This rule detects the use of Mimikatz by looking for specific keywords associated with its modules and functionalities within Windows Event Logs. These keywords cover various Mimikatz features, including credential dumping (LSASS, SAM, LSA secrets), Kerberos ticket manipulation (golden ticket, pass-the-ticket), DPAPI masterkey extraction, and other miscellaneous functions. Some keywords may be more prevalent in older Mimikatz versions but are still used by threat actors.
This rule detects the presence of keywords commonly associated with well-known PowerShell exploitation frameworks such as Mimikatz and Metasploit within PowerShell script blocks. The keywords indicate attempts to perform privileged operations like manipulating access tokens, reading process memory, or other actions typically involved in credential dumping and privilege escalation. Detection relies on PowerShell Script Block Logging being enabled to capture the script content.
This rule detects remote access to the Local Security Authority Subsystem Service (LSASS) process via Windows Remote Management (WinRM). This activity is highly indicative of credential dumping attempts, often performed by tools like Mimikatz, to extract sensitive authentication material from memory. The rule specifically looks for process access events where the target process is 'lsass.exe' and the source process initiating the access is 'wsmprovhost.exe', which is associated with WinRM. It also filters out common benign access patterns (0x80000000 GrantedAccess) to reduce false positives.
This rule detects the execution of Mimikatz by identifying specific command-line arguments and keywords commonly associated with its various modules and functions. It looks for terms like 'DumpCreds', 'mimikatz', and module-specific keywords such as '::aadcookie', '::detours', 'sekurlsa::', 'kerberos::', and 'lsadump::'. The rule aims to identify attempts to dump credentials or perform other malicious actions using the Mimikatz tool.
This rule detects attempts to access the Local Security Authority Subsystem Service (LSASS) process memory with specific uncommon access flags (0x410 and 0x01410). These flags are often used by tools or techniques designed to dump credentials from LSASS, a common method for credential theft on Windows systems. The rule includes extensive filters to reduce false positives from legitimate software that might interact with LSASS.
Detects the creation of specific files commonly associated with Mimikatz, a credential dumping tool. Specifically, it looks for files ending with '.kirbi' (Kerberos tickets) or named 'mimilsa.log' (related to MemSSP). This activity often indicates an attempt to steal Kerberos credentials or other sensitive authentication information.
Detects attempts to access the LSASS process memory by tools or processes that have the keyword "dump" in their image name. This behavior is indicative of credential dumping activities, where adversaries try to extract sensitive information like passwords and hashes from the LSASS process.
This rule detects suspicious patterns in program names or command-line arguments that are commonly associated with malicious samples, hacktools, or exploit kits. It looks for specific keywords and file names in the 'Image' (executable path) and 'CommandLine' fields. Examples include CVE-related strings, common exploit/artifact names like 'poc.exe', 'meterpreter', and various PowerShell scripts often used in post-exploitation such as 'inject.ps1', 'Invoke-CVE', 'mimikatz.ps1', and 'powercat.ps1'.
Detects the execution of PowerShell scripts containing patterns commonly associated with Mimikatz, a tool used for dumping credentials. The rule looks for specific strings related to Mimikatz functionalities like 'DumpCreds', 'DumpCerts', 'sekurlsa::logonpasswords', and 'crypto::certificates' in conjunction with 'CERT_SYSTEM_STORE_LOCAL_MACHINE'.
Detects the creation or modification of registry keys related to printer drivers that contain specific strings associated with Mimikatz or the PrinterNightmare vulnerability (CVE-2021-1675, CVE-2021-34527). The rule looks for 'QMS 810' or 'mimikatz' in printer driver paths, or a combination of 'legitprinter' and printer environment paths, or specific strings like 'Gentil Kiwi', 'mimikatz printer', or 'Kiwi Legit Printer' in registry objects related to printing.
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