Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects password dumper activity by monitoring remote thread creation (EventID 8) where the target process is 'lsass.exe'. The process initiating the remote thread is the malicious program. A single execution of such a tool can generate numerous events.
This rule detects the execution of the `Get-ADReplAccount` cmdlet from the DSInternals PowerShell module with specific parameters (`-All` and `-Server`). This cmdlet is used to perform a DCSync attack, which allows an attacker to retrieve password hashes and other sensitive Active Directory information by simulating a domain controller replication. The DSInternals module provides advanced capabilities for Active Directory manipulation and auditing, and its use in this manner is highly suspicious and indicative of credential access attempts.
This rule detects PowerShell scripts attempting to use specific Windows API functions that are commonly associated with malicious activities such as process injection (VirtualAlloc, OpenProcess, WriteProcessMemory, CreateRemoteThread), token manipulation (OpenProcessToken, LookupPrivilegeValue, AdjustTokenPrivileges, DuplicateTokenEx), and memory operations (ReadProcessMemory, VirtualFree). Detection relies on PowerShell Script Block Logging being enabled to capture the script content.
Detects an attempt to dump credentials from the VeeamBackup database using sqlcmd.exe by querying the 'VeeamBackup.dbo.Credentials' table. This activity is indicative of an attacker trying to extract sensitive information, potentially for lateral movement or further compromise.
Detects command line usage of "findstr.exe" to search for keywords related to "passwords" in various languages. This activity can indicate an adversary attempting to locate credentials stored in files on a compromised system.
This rule detects the execution of 'show history', 'show history all', or 'show logging' commands on Cisco devices. These commands can expose sensitive information, including credentials, that have been entered into the device's command-line interface. Adversaries may use these commands to gather credentials or other sensitive configuration details from network devices.
Detects attempts to access the Local Security Authority Subsystem Service (LSASS) process memory from non-system accounts, which is a common technique used by credential dumping tools like Mimikatz. The rule specifically looks for security events (4663 or 4656) related to process object access with specific access masks targeting 'lsass.exe', while filtering out legitimate system accounts and known benign processes.
Detects the creation of an 'ntds.dit' file, which contains Active Directory database information including credential hashes, by processes commonly abused by attackers or processes running from suspicious directories like 'Temp' or 'AppData'. This activity is highly indicative of credential dumping attempts.
Detects the creation of the 'ntds.dit' file, which contains Active Directory database information, by processes that are not typically associated with this activity. This rule specifically looks for 'ntds.dit' creation when the parent process is an uncommon executable (e.g., cscript.exe, powershell.exe, web server processes) or originates from suspicious directories (e.g., AppData, Temp, Public). This activity often indicates an attempt to dump Active Directory credentials.
Detects the creation of named pipes commonly used by credential dumping tools such as Mimikatz (wceservicepipe) and other tools that might use 'cachedump' or 'lsadump' in their pipe names to extract credentials.
Detects the execution of 'setspn.exe' with the query flag ('-q' or '/q'), which is commonly used by attackers to enumerate Service Principal Names (SPNs) as a precursor to Kerberoasting attacks. This activity can help identify potential attempts to discover service accounts with weak passwords that can be cracked offline.
This rule detects when an application is granted delegated or app role permissions within Microsoft Graph, Exchange, SharePoint, or Azure AD. This activity can indicate an adversary attempting to establish persistence or elevate privileges by giving a malicious application access to sensitive resources.
This rule identifies user sign-ins originating from anonymous IP addresses, which may indicate the use of VPNs, Tor, or other anonymization services. Such activity can be a sign of an adversary attempting to mask their true location or identity during an access attempt.
This rule detects user activity that Azure AD Identity Protection has flagged as 'investigationsThreatIntelligence'. This risk event type indicates that a sign-in or user behavior is unusual for the user or consistent with known attack patterns, often leveraging threat intelligence feeds to identify suspicious activity. It suggests potential compromise of user accounts or malicious sign-in attempts.
Detects reconnaissance activities targeting privileged Active Directory users or groups by monitoring Windows Security Event ID 4661. The rule specifically looks for access attempts to objects identified as privileged users or groups based on their Security Identifier (SID) suffixes or names containing 'admin'. It filters out activity from machine accounts to reduce false positives.
This rule detects a potential Kerberos Replay Attack on domain controllers. It specifically looks for Event ID 4649, which indicates that a "KRB_AP_ERR_REPEAT" Kerberos response was sent to the client. This error signifies that the KDC detected a replay of a Kerberos Application Server (AP) request, suggesting an adversary might be attempting to reuse stolen Kerberos tickets to gain unauthorized access.
Detects attempts to request a handle to the Security Account Manager (SAM) registry hive. Accessing the SAM hive can indicate an adversary attempting to dump credentials.
This rule detects the mounting of a volume shadow copy, specifically looking for Event ID 98 from the Microsoft-Windows-Ntfs provider where the DeviceName contains 'HarddiskVolumeShadowCopy'. Adversaries may mount volume shadow copies to access files, including credential stores like the Security Account Manager (SAM) database, without directly interacting with the live file system, which can bypass some security controls.
Detects suspicious local connections via a named pipe to the AD FS configuration database (Windows Internal Database). This database contains sensitive information used to sign SAML tokens. The rule specifically looks for connections to the '\MICROSOFT##WID\tsql\query' named pipe by processes other than known legitimate AD FS or Windows Internal Database components.
Detects WerFault creating a dump file with a name that indicates the dump file could be an LSASS process memory dump, which contains user credentials. This technique is often used by adversaries to extract credentials for lateral movement or privilege escalation.
Adversaries may acquire credentials from web browsers by reading files specific to the target browser. This rule detects PowerShell commands attempting to copy browser login data files from common web browsers like Opera, Firefox, Microsoft Edge, and Google Chrome.
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