Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects attempts to add sensitive privileges to a process token, a common technique for local privilege escalation. This could be part of an exploit chain following an information disclosure vulnerability like CVE-2025-53136.
Detects the loading of the vulnerable RTCore64.sys driver. This driver is exploited by threats like kkRAT to disable AV/EDR security callbacks as part of a Bring Your Own Vulnerable Driver (BYOVD) attack.
Detects potential exploitation of a critical ABAP code injection vulnerability (CVE-2025-42957) in SAP S/4HANA. An attacker with low-level privileges can leverage a vulnerable RFC module, /SLOAE/DEPLOY, to execute arbitrary code and gain full control of the system.
Detects scenarios where an attacker attempts to spoof the SAM account name of a a domain controller in order to impersonate it. Vulnerability comes from that computer accounts should have a trailing $ in their name (i.e. sAMAccountName attribute) but no validation process existed until the patch was released. During the offensive phase, attacker will create and rename the sAMAccountName of a computer account to look like the one of a domain controller. Once the attack is done, attacker will rollback the sAMAccountName to its original name.
Detects scenarios where an attacker abuse the SeMachineAccountPrivilege which allows per default any authenticated user to join a computer to the domain. Later on, this computer account can be manipulated in order to elevate privileges.
Detects scenarios where an attacker creates a computer account with privileges for later exploitation.
Detects scenarios where an attacker attempts to request a proxiable ticket. This action may trigger while attempting to identify a vulnerable target or using some offsensive Kerberos tools like Kerbrute, Impacket...
Detects scenarios where an attacker attempts to spoof the SAM account name of a a domain controller in order to impersonate it. Vulnerability comes from that computer accounts should have a trailing $ in their name (i.e. sAMAccountName attribute) but no validation process existed until the patch was released. During the offensive phase, attacker will create and rename the sAMAccountName of a computer account to look like the one of a domain controller.
Detects suspicious downloads or fetches of common privilege-escalation tools such as winPEAS, linPEAS, PowerUp, Seatbelt, SharpUp, WinPwn, PrivescCheck, Sherlock, Watson, BeRoot, LinEnum, LSE/LES, Linux Exploit Suggester, pspy, or GTFObins. These tools are often used by adversaries after initial access to enumerate the environment and attempt local privilege escalation.
This rule detects attempts to exploit known CVEs on the network where the targeted device is identified as vulnerable to that specific CVE. It correlates network inspection signatures with vulnerability management data to identify high-confidence exploitation attempts.
Summary
Sophisticated EDR (Endpoint Detection and Response) killer tools are increasingly being used by various ransomware groups to disable security solutions, allowing them to operate undetected during multi-stage attacks. These tools, often packed with services like HeartCrypt, leverage compromised code-signing certificates and vulnerable drivers to gain kernel-level access and terminate security processes.
What's New
A significant new finding is the widespread adoption and apparent sharing of these EDR killer tools, often customized and packed with HeartCrypt, across numerous competing ransomware groups including RansomHub, Blacksuit, Medusa, Qilin, Dragonforce, Crytox, Lynx, and INC. This suggests a concerning trend of technical knowledge transfer and tool sharing within the ransomware ecosystem, making these attacks more pervasive and challenging to defend against.
Actionable Threat Data
T1562.001 - Impair Defenses: Disable or Modify Tools: Monitor for the creation of new services with randomly generated five-character names, especially those associated with .sys files, as these are indicative of malicious driver installation for EDR evasion.
T1036.005 - Masquerading: Match Legitimate Name or Location: Look for executables that masquerade as legitimate software (e.g., by injecting malicious code into legitimate utilities like Beyond Compare) and attempt to load drivers signed with revoked or expired certificates from entities like "Changsha Hengxiang Information Technology Co., Ltd." or "Fuzhou Dingxin Trade Co., Ltd.".
T1562.001 - Impair Defenses: Disable or Modify Tools: Detect attempts to terminate security-related processes such as MsMpEng.exe, SophosHealth.exe, SAVService.exe, sophosui.exe, sepwscsvc64Exe, sepagentExe, SophosOsqueryExtension.exe, SophosNetFilter.exe, SophosScanCoordinator.exe, SophosUpdate.exe, HitmanPro.Alert.exe, HitmanPro.exe, HmpschedExe, mpcmdrunExe, and NissrvExe.
T1055 - Process Injection: Identify instances of process hollowing
Sophisticated EDR (Endpoint Detection and Response) killer tools are increasingly being used by various ransomware groups to disable security solutions, allowing them to operate undetected during multi-stage attacks. These tools, often packed with services like HeartCrypt, leverage compromised code-signing certificates and vulnerable drivers to gain kernel-level access and terminate security processes.
What's New
A significant new finding is the widespread adoption and apparent sharing of these EDR killer tools, often customized and packed with HeartCrypt, across numerous competing ransomware groups including RansomHub, Blacksuit, Medusa, Qilin, Dragonforce, Crytox, Lynx, and INC. This suggests a concerning trend of technical knowledge transfer and tool sharing within the ransomware ecosystem, making these attacks more pervasive and challenging to defend against.
Actionable Threat Data
T1562.001 - Impair Defenses: Disable or Modify Tools: Monitor for the creation of new services with randomly generated five-character names, especially those associated with .sys files, as these are indicative of malicious driver installation for EDR evasion.
T1036.005 - Masquerading: Match Legitimate Name or Location: Look for executables that masquerade as legitimate software (e.g., by injecting malicious code into legitimate utilities like Beyond Compare) and attempt to load drivers signed with revoked or expired certificates from entities like "Changsha Hengxiang Information Technology Co., Ltd." or "Fuzhou Dingxin Trade Co., Ltd.".
T1562.001 - Impair Defenses: Disable or Modify Tools: Detect attempts to terminate security-related processes such as MsMpEng.exe, SophosHealth.exe, SAVService.exe, sophosui.exe, sepwscsvc64Exe, sepagentExe, SophosOsqueryExtension.exe, SophosNetFilter.exe, SophosScanCoordinator.exe, SophosUpdate.exe, HitmanPro.Alert.exe, HitmanPro.exe, HmpschedExe, mpcmdrunExe, and NissrvExe.
T1055 - Process Injection: Identify instances of process hollowing
Detects potential exploitation attempts against Ivanti Connect Secure devices for vulnerability CVE-2025-22457. This vulnerability is actively exploited in the wild. Attackers can send an abnormally long string composed of digits and periods in the 'X-Forwarded-For' HTTP header to trigger a stack-based buffer overflow, which can lead to remote code execution.
This rule detects advanced memory exploitation techniques, including anomalous memory protection changes (non-executable to executable), writes to executable memory regions within the same process, large executable memory allocations followed by network activity, and potential format string exploit attempts in web logs. It aims to identify behaviors indicative of bypassing ASLR and DEP.
Detects potential exploitation of Dell ControlVault vulnerabilities (dubbed 'ReVault') by monitoring for related service crashes or the abnormal loading of the `bcmbipdll.dll` module. An attacker with local access can exploit these vulnerabilities for privilege escalation or persistence.
This rule detects HTTP POST requests to specific SharePoint application paths, including ToolPane.aspx and SignOut.aspx. These paths have historically been associated with SharePoint vulnerabilities, particularly unauthenticated remote code execution (RCE) exploits. The rule aims to identify attempts to interact with these sensitive endpoints, which could indicate an attacker attempting to exploit known vulnerabilities or perform unauthorized actions.
Detecting LOLDrivers using www.loldrivers.io and MDE telemetry.
This rule was created by Mehmet Ergene from BluRaven Academy and added to Detections.ai as it was missing from the repository.
This rule was created by Mehmet Ergene from BluRaven Academy and added to Detections.ai as it was missing from the repository.
Detects suspicious process executions where Sysmon itself is the parent of a newly created process. This behavior can indicate an exploitation attempt, such as the one described in CVE-2022-41120, where an attacker might leverage a vulnerability in Sysmon to execute arbitrary code with elevated privileges. The rule filters out legitimate Sysmon processes and known system processes that might legitimately be children of Sysmon.
KQL Query from file: Azure Cloud Security Monitoring
KQL Query from file: Sentinel UEBA Privilege Escalation Detection
KQL Query from file: Detecting EDR-killing Tool
KQL Query from file: BadSuccessor Detection
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