Detections

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

6,695 detections

Detects the creation of suspicious scheduled tasks using the Windows schtasks.exe utility. The rule flags tasks that are configured to run as SYSTEM, include PowerShell encoded commands, or target directories commonly used for persistence such as Temp, AppData, or Public.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
706
Detects the deletion of volume shadow copies using common Windows administrative tools such as vssadmin, wmic, and PowerShell. This activity is frequently observed during the pre-encryption stage of ransomware attacks to prevent system restoration.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
306
Detects the physical connection of unauthorized IP-KVM devices (e.g., PiKVM) to corporate endpoints, which could be used for remote control via HDMI capture and USB HID emulation. This detection monitors Plug and Play (PnP) events for specific device descriptors and hardware identifiers commonly associated with remote access hardware.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
2013
Detects a potential post-compromise lateral movement sequence where a host, previously identified as accessing sensitive browser credential files by an unauthorized process, subsequently initiates RDP or WinRM connections to other internal hosts using an account not previously observed performing interactive logons on that source host.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
105
Detects the use of native Windows utilities (vssadmin.exe, wmic.exe, wbadmin.exe, bcdedit.exe) to delete volume shadow copies, backup catalogs, or modify boot configuration data to inhibit system recovery, a common behavior observed during ransomware and wiper attacks.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
105
Detects persistence attempts by monitoring Windows Registry Run and RunOnce keys for suspicious file paths (e.g., AppData, Temp, Users\Public) or the execution of non-standard script and binary file types (e.g., .vbs, .js, .ps1, .hta, wscript, cscript, mshta). These indicators are common signs of malware or unauthorized software maintaining persistence on a system.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
305
Detects anomalous lateral movement behavior where a successful NetScaler VPN or gateway session is followed immediately by internal remote service logons (RDP, SSH, WinRM) or network connections from the same source IP. This pattern is indicative of potential exploitation of Citrix NetScaler vulnerabilities (e.g., CVE-2026-88771, CVE-2026-88772) or credential abuse to move laterally into the internal environment.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
209
Detects usage of ntdsutil.exe with arguments designed to dump the Active Directory database (NTDS.dit) and the use of netsh.exe for establishing covert port forwarding. These are known 'Living-off-the-Land' (LotL) techniques observed in campaigns attributed to the threat actor Volt Typhoon.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
005
ACL deletion performed on the domain root object, significant AD change with high impact. Following MS guidance all changes at this level should be reviewed. Drill into the logonID within EventCode 4624 for information on the source device during triage.
Splunk Security@SplunkSecurity
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Splunk Security Content
26 days ago
001
ACL modification performed on the domain root object, significant AD change with high impact. Following MS guidance all changes at this level should be reviewed. Drill into the logonID within EventCode 4624 for information on the source device during triage.
Splunk Security@SplunkSecurity
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Splunk Security Content
26 days ago
001
This detection identifies when a a new client side extension is added to an Active Directory Group Policy using the Group Policy Management Console.
Splunk Security@SplunkSecurity
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Splunk Security Content
26 days ago
001
The following analytic identifies a possible non-common browser process accessing its browser user data profile.
This tactic/technique has been observed in various Trojan Stealers, such as SnakeKeylogger, which attempt to gather sensitive browser information and credentials as part of their exfiltration strategy.
Detecting this anomaly can serve as a valuable pivot for identifying processes that access lists of browser user data profiles unexpectedly.
This detection uses a lookup file `browser_app_list` that maintains a list of well known browser applications and the browser paths that are allowed to access the browser user data profiles.
Splunk Security@SplunkSecurity
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Splunk Security Content
26 days ago
001
This Analytic detects the execution of a process attempting to access the hosts file.
The hosts file is a critical file for network configuration and DNS resolution.
If an attacker gains access to it, they can redirect traffic to malicious websites, serve fake content or block legitimate security websites.
Splunk Security@SplunkSecurity
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Splunk Security Content
26 days ago
001
The following analytic identifies a LOLBAS process being executed outside of it's expected location.
Processes being executed outside of expected locations may be an indicator that an adversary is attempting to evade defenses or execute malicious code.
The LOLBAS project documents Windows native binaries that can be abused by threat actors to perform tasks like executing malicious code.
Splunk Security@SplunkSecurity
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Splunk Security Content
26 days ago
001
The following analytic detects the creation of scheduled tasks designed to execute commands using native Windows shells like PowerShell, Cmd, Wscript, or Cscript or from public folders such as Users, Temp, or ProgramData. It leverages Windows Security EventCode 4698, 4700, and 4702 to identify when such tasks are registered, enabled, or modified. This activity is significant as it may indicate an attempt to establish persistence or execute malicious commands on a system. If confirmed malicious, this could allow an attacker to maintain access, execute arbitrary code, or escalate privileges, posing a severe threat to the environment.
Splunk Security@SplunkSecurity
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Splunk Security Content
26 days ago
001
The following analytic detects the creation, modification, or enabling of scheduled tasks with known suspicious or malicious task names. It leverages Windows Security EventCode 4698, 4700, and 4702 to identify when such tasks are registered, modified, or enabled. This activity is significant as it may indicate an attempt to establish persistence or execute malicious commands on a system. If confirmed malicious, this could allow an attacker to maintain access, execute arbitrary code, or escalate privileges, posing a severe threat to the environment.
Splunk Security@SplunkSecurity
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Splunk Security Content
26 days ago
001
Detects interactive RDP logons (LogonType 10) occurring on domain controllers or VDI authentication servers where the originating workstation name follows naming conventions associated with VDI/virtual-desktop environments. This pattern is indicative of potential lateral movement, where an adversary pivots from a compromised user VDI instance directly to sensitive infrastructure, bypassing established administrative jump box protocols.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
204
Detects the execution of renamed schtasks.exe binary, which is a legitimate Windows utility used for scheduling tasks.
One of the very common persistence techniques is schedule malicious tasks using schtasks.exe.
Since, it is heavily abused, it is also heavily monitored by security products. To evade detection, threat actors may rename the schtasks.exe binary to schedule their malicious tasks.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
30 days ago
203
Detects Impacket-style lateral movement patterns where system processes such as services.exe or wmiprvse.exe spawn command shells to copy files from a network share (UNC path) and execute them. This rule specifically looks for evidence of staging binaries or DLLs from remote shares, which is a common behavior of post-compromise frameworks like Impacket when performing 'hands-on-keyboard' actions.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
006
Detects unauthorized access to DPAPI master key files located in the Windows user profile (%APPDATA%\Microsoft\Protect\). This activity is commonly associated with infostealers attempting to decrypt browser-stored credentials (cookies, passwords) by manually accessing the master key files after exfiltrating encrypted data stores.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
504
Detects instances where a service account, identified by 'svc' in the account name, logs on and is assigned special privileges (Event ID 4672). This rule excludes computer accounts (ending in $) to minimize noise, as service accounts typically operate with specific, limited privileges and unusual privilege assignment could indicate an adversary abusing a service account for persistence or privilege escalation.
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Nagasubramani K@Nagacyberdefender
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Detections.ai Community
1 month ago
014
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