Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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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 when an access policy that is applied to a GCP cloud resource is deleted.
An adversary would be able to remove access policies to gain access to a GCP cloud resource.
An adversary would be able to remove access policies to gain access to a GCP cloud resource.
Detects the execution of Process Hacker, a tool used to view and manipulate processes and other low-level system options. Detection is based on binary metadata such as image path, original filename, description, product name, and known file hashes (MD5, SHA1, SHA256, IMPHASH). Threat actors have been known to abuse older, vulnerable versions of Process Hacker to manipulate system processes.
Detects the execution of UACMe, a tool used for User Account Control (UAC) bypasses, by identifying specific PE metadata (Product, Company, Description, OriginalFileName) or image names. It also includes a selection of known IMPHASH values associated with UACMe's 'Akagi' component.
Detects the execution of the 'Impersonate' tool, which is designed to manipulate Windows tokens. This tool can be used to escalate privileges by impersonating other user tokens, either remotely (e.g., via PsExec/WmiExec) or interactively. Detection is based on specific command-line arguments or known hashes of the tool.
Detects the execution of System Informer, a legitimate but powerful task manager tool that can be used to view and manipulate processes, kernel options, and other low-level operations. Its capabilities make it a potential tool for adversaries to gain system information, escalate privileges, or evade defenses.
Detects the execution of the LocalPotato Proof-of-Concept (POC) tool. This detection is based on specific characteristics of the executable's image name, command-line arguments, and known import hashes (IMPHASH) associated with LocalPotato. The tool is known for exploiting vulnerabilities to achieve privilege escalation.
Detects the execution of a Proof-of-Concept (PoC) tool named 'SysmonEOP.exe' or a variant identified by specific IMPHASH values. This tool is designed to exploit CVE-2022-41120, a vulnerability in Sysmon that can lead to privilege escalation.
Detects when an application (service principal) is assigned Azure AD roles, such as global administrator, or Azure RBAC roles, such as subscription owner. This activity can indicate privilege escalation or persistence by an attacker who has compromised an application.
Detects suspicious processes spawned from a Java host process which could indicate a sign of exploitation (e.g. log4j)
Detects the use of parent process ID spoofing tools like Didier Stevens tool SelectMyParent
Detects when an app is assigned Azure AD roles, such as global administrator, or Azure RBAC roles, such as subscription owner.
Detects the execution of the PoC that can be used to exploit Sysmon CVE-2022-41120
Detects potential exploitation attempts of the Netlogon Elevation of Privilege Vulnerability (CVE-2020-1472), also known as Zerologon. This rule specifically looks for Event ID 4742 (A computer account was changed) where the SubjectUserName is 'ANONYMOUS LOGON' and the TargetUserName matches a Domain Controller's machine account name (ending with '$'), while filtering out legitimate password changes by checking if 'PasswordLastSet' is not '-'.
Detects the creation of named pipes with patterns characteristic of the EfsPotato privilege escalation tool. This tool exploits a vulnerability related to the Encrypting File System (EFS) service to achieve local privilege escalation by creating specific named pipes for inter-process communication.
Detects when a memory process image does not match the disk image, indicative of process hollowing. This rule specifically looks for 'Image is replaced' events and filters out common legitimate applications that might exhibit similar behavior, such as applications in 'Program Files', 'Windows\System32\wbem\WMIADAP.exe', 'Windows\SysWOW64\wbem\WMIADAP.exe', Opera, and Edge.
Detects command-line keywords indicative of the execution of the WinPwn tool, which is used for Windows and Active Directory reconnaissance and exploitation. This rule specifically looks for 'Offline_Winpwn', 'WinPwn ', 'WinPwn.exe', or 'WinPwn.ps1' in the command line.
Detects scriptblock text keywords indicative of potential usage of the tool WinPwn. WinPwn is a tool for Windows and Active Directory reconnaissance and exploitation. The rule specifically looks for 'Offline_Winpwn', 'WinPwn ', 'WinPwn.exe', or 'WinPwn.ps1' within PowerShell script block logs.
Detects the modification of the 'Ime File' registry value within the 'Keyboard Layouts' key to include an uncommon file extension. This technique can be used by attackers to load a malicious DLL into a process via the Windows Input Method Editor (IME) feature, typically after sending a WM_INPUTLANGCHANGEREQUEST message. The rule specifically looks for modifications where the 'Ime File' value does not end with the standard '.ime' extension, indicating potential malicious activity.
Detects whether a process is created from an image path that does not have a standard executable file extension (e.g., .exe, .com, .bin). This behavior can indicate advanced evasion techniques like process ghosting or other unorthodox methods to launch processes, where an executable might be disguised or loaded without a typical extension. The rule includes various filters to reduce false positives from legitimate system processes, temporary files, installer components, and specific third-party applications.
Detects the execution of the 'whoami.exe' command by highly privileged accounts such as 'AUTHORITY\SYSTEM', 'NT AUTHORITY\SYSTEM', or 'TrustedInstaller'. This activity can indicate an attacker performing discovery after achieving privilege escalation, as these accounts are often targeted for abuse.
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