Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the load of known vulnerable drivers via the file name of the drivers.
Detects the use of Pingback backdoor that creates ICMP tunnel for C2 as described in the trustwave report
Adversaries may establish persistence by executing malicious content triggered by user inactivity.
Screensavers are programs that execute after a configurable time of user inactivity and consist of Portable Executable (PE) files with a .scr file extension
Screensavers are programs that execute after a configurable time of user inactivity and consist of Portable Executable (PE) files with a .scr file extension
Detects the execution of the SharpDPAPI tool based on CommandLine flags and PE metadata.
SharpDPAPI is a C# port of some DPAPI functionality from the Mimikatz project.
SharpDPAPI is a C# port of some DPAPI functionality from the Mimikatz project.
This query creates a list of IP addresses with the number of failed login attempts to Entra ID
above a set threshold ( default of 5 ). It then looks for any successful Palo Alto VPN logins from any of these IPs within the same timeframe.
above a set threshold ( default of 5 ). It then looks for any successful Palo Alto VPN logins from any of these IPs within the same timeframe.
Detects the modification of Outlook security setting to allow unprompted execution of macros.
Detects modification of autostart extensibility point (ASEP) in registry.
Detects potential DLL sideloading using ClassicExplorer32.dll from the Classic Shell software
'An account could be blocked if there are too many failed authentication attempts in a row. This hunting query identifies if a MFA user account that is set to blocked tries to login to Microsoft Entra ID.
This query has also been updated to include UEBA logs IdentityInfo and BehaviorAnalytics for contextual information around the results.'
This query has also been updated to include UEBA logs IdentityInfo and BehaviorAnalytics for contextual information around the results.'
'This query will determine multiple password resets by user across multiple data sources.
Account manipulation including password reset may aid adversaries in maintaining access to credentials and certain permission levels within an environment.'
Account manipulation including password reset may aid adversaries in maintaining access to credentials and certain permission levels within an environment.'
'Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by accessibility features. Windows contains accessibility features that may be launched with a key combination before a user has logged in (ex: when the user is on the Windows logon screen). An adversary can modify the way these programs are launched to get a command prompt or backdoor without logging in to the system.
Two common accessibility programs are C:\Windows\System32\sethc.exe, launched when the shift key is pressed five times and C:\Windows\System32\utilman.exe, launched when the Windows + U key combination is pressed. The sethc.exe program is often referred to as "sticky keys", and has been used by adversaries for unauthenticated access through a remote desktop login screen. [1]
Ref: https://attack.mitre.org/techniques/T1546/008/'
Two common accessibility programs are C:\Windows\System32\sethc.exe, launched when the shift key is pressed five times and C:\Windows\System32\utilman.exe, launched when the Windows + U key combination is pressed. The sethc.exe program is often referred to as "sticky keys", and has been used by adversaries for unauthenticated access through a remote desktop login screen. [1]
Ref: https://attack.mitre.org/techniques/T1546/008/'
schtasks.exe create task from user AppData\Local\Temp
Detect standard users login that are part of high privileged groups such as the Administrator group
Detects a explorer.exe sub process of the RazerInstaller software which can be invoked from the installer to select a different installation folder but can also be exploited to escalate privileges to LOCAL SYSTEM
Detects the execution of installed GuLoader malware on the host.
GuLoader is initiating network connections via the rundll32.exe process that is spawned via a browser parent(injected) process.
GuLoader is initiating network connections via the rundll32.exe process that is spawned via a browser parent(injected) process.
'This content is employed to correlate with Microsoft Defender XDR phishing-related alerts. It focuses on instances where a user successfully connects to a phishing URL from a non-Microsoft network device and subsequently makes successful sign-in attempts from the phishing IP address.'
Detects process injection using the signed Windows tool "Mavinject" via the "INJECTRUNNING" flag
Audit CVE Event
Sigma
Detects events generated by user-mode applications when they call the CveEventWrite API when a known vulnerability is trying to be exploited.
MS started using this log in Jan. 2020 with CVE-2020-0601 (a Windows CryptoAPI vulnerability.
Unfortunately, that is about the only instance of CVEs being written to this log.
MS started using this log in Jan. 2020 with CVE-2020-0601 (a Windows CryptoAPI vulnerability.
Unfortunately, that is about the only instance of CVEs being written to this log.
DLL Load via LSASS
Sigma
Detects a method to load DLL via LSASS process using an undocumented Registry key
Adversaries may use port monitors to run an attacker supplied DLL during system boot for persistence or privilege escalation.
A port monitor can be set through the AddMonitor API call to set a DLL to be loaded at startup.
A port monitor can be set through the AddMonitor API call to set a DLL to be loaded at startup.
Detects the installation of a new shim database where the file is located in a non-default location
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