Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

779 detections

This rule detects suspicious SMB traffic targeting raw disk volumes (e.g., PhysicalDrive, C:) or sensitive Windows files such as NTDS.dit and SYSTEM hive files. This behavior is indicative of credential dumping attempts, often performed using tools like secretsdump.py or Invoke-NinjaCopy, which bypass standard file system access controls to exfiltrate critical system credentials.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
003
This rule detects attempts to acquire Windows credentials by accessing critical registry hives (SAM, SYSTEM, SECURITY) or their shadow copies. It looks for the use of 'reg save' to export hives, as well as direct file access to these hives or their shadow copy variations by non-standard system processes.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
004
Detects unsigned or non-Microsoft processes attempting to access sensitive system process memory (lsass.exe, winlogon.exe, services.exe) or processes attempting to enable SeDebugPrivilege, which are common indicators of credential dumping or process injection attempts.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
004
Detects techniques associated with Golden SAML attacks, including the use of Mimikatz for ADFS token-signing certificate extraction, the execution of AADInternals PowerShell cmdlets for SAML token forgery, and unauthorized access to the ADFS configuration database (AdfsConfiguration.mdf).
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
007
This rule detects the execution of processes with command-line arguments indicative of Mimikatz usage. It specifically looks for the strings 'mimikatz', 'sekurlsa', or 'privilege::debug' in the command line of newly created processes (EventID 4688). This activity is commonly associated with credential dumping.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
003
The rule detects potential credential dumping activities by monitoring for the execution of Mimikatz or the use of its specific command-line arguments (e.g., sekurlsa::logonpasswords, /ntlm:). It also monitors for suspicious, unauthorized processes attempting to open a handle to the LSASS process to access its memory, a common technique for dumping credentials.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
204
Detects potential DCSync attacks by monitoring for Windows Event ID 4662 (Object Access) where a non-domain controller account exercises directory replication rights (DS-Replication-Get-Changes-All) against Active Directory domain objects. This identifies unauthorized attempts to pull sensitive credential data directly from a Domain Controller.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
003
Detects the creation of files with non-standard extensions (.elf, .raw, .file, .sense) in the 'C:\Users\Public\' directory. This activity is indicative of the ShadowDumper tool, which generates LSASS memory dumps and writes them to publicly accessible paths using atypical file extensions to evade signature-based detection.
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Ethan Andrews@eandrews
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Federal Signal Detections
4 months ago
103
Detects unauthorized or suspicious processes attempting to open a handle to the Local Security Authority Subsystem Service (lsass.exe) with access rights required for memory reading, such as PROCESS_VM_READ or PROCESS_QUERY_INFORMATION. This behavior is a common prerequisite for credential dumping techniques like Minidump or direct memory extraction used by malicious tools.
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Ethan Andrews@eandrews
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Federal Signal Detections
4 months ago
603
Detects potential credential harvesting attempts by monitoring for the usage of Windows credential management tools (cmdkey.exe and vaultcmd.exe) and the loading of sensitive DLLs (vaultcli.dll, dpapi.dll) by non-Microsoft signed processes, which is commonly used to access stored credentials in the Windows Vault or by DPAPI-protected stores.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
004
Detects attempts to modify the WDigest UseLogonCredential registry value, which can be used to force Windows to store plaintext credentials in LSASS memory. Adversaries use this technique to facilitate credential dumping.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
003
Detects modifications to the 'UseLogonCredential' registry value under the WDigest security provider. Enabling this setting allows Windows to store plaintext credentials in memory (LSASS), which facilitates credential theft and credential dumping attacks.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
003
Detects Mimikatz-based credential dumping against the Local Security Authority Subsystem Service (LSASS) process. The rule identifies this activity by monitoring for renamed or known Mimikatz binary names, execution of specific credential-harvesting command-line arguments (such as sekurlsa::logonpasswords or privilege::debug), output redirection to credential-related files, or the loading of the Mimikatz kernel driver (mimidrv.sys).
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
003
Detects the use of legitimate Windows system utilities (ntdsutil.exe, vssadmin.exe, esentutl.exe) to interact with the Active Directory database file (ntds.dit). This behavior is commonly associated with offline credential harvesting, where an attacker attempts to create a copy of the database to extract hashes offline.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
204
This rule detects various methods used to copy or access the Active Directory database (NTDS.dit), a common technique used by attackers to dump domain credentials. The rule monitors for the use of ntdsutil with 'ifm' (install from media) arguments, vssadmin to create volume shadow copies of the NTDS file, esentutl directly interacting with the NTDS database path, and common file copy utilities attempting to copy the NTDS.dit file.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
004
Detects the use of native Windows utilities (vssadmin, ntdsutil, diskshadow, esentutl) or command-line execution (cmd, powershell) to access, copy, or create shadow copies of the Active Directory database file (NTDS.dit), which is a common indicator of credential dumping.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
004
Detects various techniques used to extract the Active Directory NTDS.dit database on Windows. The rule monitors for the misuse of administrative tools including ntdsutil.exe (for IFM or instance activation), vssadmin.exe (to create volume shadow copies as a prerequisite), and esentutl.exe (for direct ESE database operations). The detection focuses on suspicious command-line patterns indicative of credential dumping attempts.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
004
Detects the use of rundll32.exe to execute the MiniDump function of comsvcs.dll, a known technique for dumping the memory of the Local Security Authority Subsystem Service (LSASS) process to gain access to stored credentials.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
103
Detects unauthorized credential dumping attempts against the Local Security Authority Subsystem Service (LSASS) process. The rule identifies suspicious use of system utilities like 'comsvcs.dll' via rundll32, cross-process handle access by unauthorized processes, and the execution of offensive security tools such as lsassy and crackmapexec.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
003
Detects attempts to perform credential dumping from the LSASS process memory using the built-in Windows binary rundll32.exe to execute comsvcs.dll. The rule monitors for specific command-line arguments and common output file paths associated with manual dumping or automated tools like lsassy.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
003
Detects the use of rundll32.exe to invoke the MiniDump function of comsvcs.dll to create a memory dump of the Local Security Authority Subsystem Service (LSASS). This technique is a common method for dumping LSASS memory to harvest credentials, often used by tools like lsassy and various post-exploitation frameworks. The rule monitors for the specific command line patterns used in this attack, including referencing comsvcs.dll and the 'full' dump argument, initiated by suspicious parent processes frequently seen in lateral movement scenarios.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
003
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