Detections

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

18,116 detections

Correlates a Webcam.dll image load with VM-detection commands (such as queries for VirtualBox, VMware, vbox, vmtoolsd, Win32_ComputerSystem, or Win32_BIOS) executed by the same RegSvcs.exe process, which is characteristic of XWorm malware behavior.
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ills3c Intel&Coffee@Ills3C
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Detections.ai Community
7 days ago
000
Detects potential DLL sideloading of DLLs that are part of antivirus software suchas McAfee, Symantec...etc
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
12 days ago
102
The following analytic detects the wermgr.exe process creating an alternate stream in the temp directory. It leverages Sysmon EventID 15 to identify these actions.
This activity is significant because wermgr.exe is typically associated with error reporting, not file creation. Such activity is significant as it may indicate RoguePlanet malware, which creates an alternate stream in the temp directory to execute malicious code.
If confirmed malicious, this could lead to further malware infections, data exfiltration, or system compromise.
Splunk Security@SplunkSecurity
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Splunk Security Content
17 days ago
108
Lists accounts that still sign in successfully with Authenticated SMTP over the last 30 days. Microsoft plans to disable Basic auth for SMTP AUTH by default for existing tenants at the end of December 2026.

Rows come from SigninLogs and AADNonInteractiveUserSignInLogs, grouped per account with source IP count, apps and first and last seen.

Triage: Find the owner of each account, then move the sender to OAuth or a mail relay before the change. Inventory query, not an alert.

Limitations: Covers only sign-ins that reach the logs. Cross check with the Exchange admin center SMTP AUTH Clients Submission Report, which keeps 90 days.
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Goksel Atakan@gokselatakan
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Detections.ai Community
18 days ago
8011
Detects the usage of command-line flags in AI coding assistant CLIs (such as Claude Code, Amazon Q CLI, and others) that intentionally skip security permissions, bypass approvals, or disable sandbox protections. The rule identifies potential developer activity that may inadvertently reduce the security posture of the development environment.
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Goksel Atakan@gokselatakan
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Detections.ai Community
24 days ago
23176
Detects external inbound FortiGate Fabric Management Protocol (FGFM) traffic on TCP port 541 followed by a FortiGateCloud administrative configuration download, backup, or running-config event on the same FortiGate device within a one-hour window, potentially indicating unauthorized configuration access or device compromise.
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Arnold Chan@slaz
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Detection & Hunting Community
12 days ago
002
The following analytic identifies the use of ping commands as a delay or sleep mechanism within batch-style command execution.
It leverages process creation telemetry from Endpoint Detection and Response (EDR) agents and examines process and parent process command-line fields for ping commands that specify a count and are chained with additional commands using command separators or redirection operators.
While execution of the command may generate individual process creation events, such as a separate ping.exe process, this analytic specifically focuses on the original command string passed to a command interpreter, such as cmd.exe /c, that combines the ping-based delay with subsequent command execution.
Adversaries may use ping as an alternative to explicit sleep or timeout commands to introduce execution delays, potentially evading automated analysis, sandboxing, or behavior-based detection.
Because ping is commonly used for legitimate network troubleshooting, findings should be reviewed in the context of the complete command line, parent process, user, and commands executed before or after the delay.
Splunk Security@SplunkSecurity
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Splunk Security Content
21 days ago
5020
Detects process creation events where common Office applications (Word, Excel, PowerPoint, Outlook) or archive/reader utilities (Acrobat, WinRAR, 7-Zip) act as the parent process to command-line interpreters, scripting engines, or administrative tools (such as cmd, powershell, wscript, cscript, mshta, rundll32, and others). This behavior is commonly associated with phishing attacks, macro execution, or exploitation of file formats leading to code execution.
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ills3c Intel&Coffee@Ills3C
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Detections.ai Community
13 days ago
702
Detects the odbcconf LOLBin delivery step assessed for the MuddyWater-linked PatchAgent chain: 'odbcconf /f cloud.rsp' launched from a PatchAgent working directory, typically via a ClickFix lure (explorer -> conhost --headless -> cmd -> odbcconf) fetching the response file over WebDAV. odbcconf executing a .rsp response file is rare in legitimate use and is high-fidelity when paired with WebDAV or a user-writable working directory.
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Georg Lauenstein@gsec
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SecOps Signals
13 days ago
002
Detects use of wmic to add Microsoft Defender scan exclusions via the
MSFT_MpPreference WMI class, targeting a program-files path and executable named to
impersonate Windows Defender. HoneyMyte (Mustang Panda) ran this exact wmic invocation
before deploying the CoolClient backdoor to a fake "Microsoft\Windows Defender"
directory, excluding both the folder and the renamed sideloader defender.exe from
scanning.
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Georg Lauenstein@gsec
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SecOps Signals
13 days ago
002
Detects MsiExec loading a DLL and calling its DllUnregisterServer function
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
12 days ago
101
Detects an uncommon svchost parent process
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
12 days ago
201
Detects successful Google Workspace logins from an IP address or user agent not previously seen for the user within a 24-hour window.
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ills3c Intel&Coffee@Ills3C
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Detections.ai Community
13 days ago
102
Detects authentication to the BIG-IP management interface. These interfaces should
be reachable only from a management network; a login from anywhere else indicates
either an exposure that should not exist or an attacker who has already reached the
management plane.

Onboarding: F5BIGIP is ingested via Syslog (Bloo extractor 81).
Integration guide: https://bloo.io/docs/hypercloud/syslog-connector

BQL (Bloo Query Language):

stream=authentication where sourcename='F5BIGIP' and action='LOGIN'
| groupby user, srcip, authproto
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Siddhant Mishra@Siddhant
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Bloo SpecterForce
9 days ago
000
Detects use of a credential seeded by the deception platform. Decoy credentials are
planted where an intruder will find them — in memory, in config files, in browser
stores — and are never issued to a person, so any use proves both that credential
theft occurred and that the attacker has begun using what they stole.

The source address on the use tells you where the attacker is operating from, which
is usually a host you did not yet know was involved.

Onboarding: SMOKESCREEN is ingested via Syslog (CEF) (Bloo extractor 206).
Integration guide: https://bloo.io/docs/hypercloud/syslog-connector

BQL (Bloo Query Language):

stream=threat where sourcename='SMOKESCREEN' and action='THREAT_DETECTED'
and user != ''
| groupby user, srcip, dstip, threat
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Siddhant Mishra@Siddhant
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Bloo SpecterForce
9 days ago
000
Detects retrieval of a privileged credential from the PAM360 vault outside normal
working hours. Credential checkout is the moment privileged access actually begins,
and an out-of-hours retrieval with no corresponding change ticket is the earliest
reliable indicator of vault misuse.

Tune the window to the customer's working pattern before deployment; a global estate
will need per-region hours rather than a single range.

Onboarding: PAM360 is ingested via Syslog (Bloo extractor 879).
Integration guide: https://bloo.io/docs/hypercloud/syslog-connector

BQL (Bloo Query Language):

stream=iam where sourcename='PAM360' and action='PASSWORD_RETRIEVED'
| groupby user, targetuser, srcip, role
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Siddhant Mishra@Siddhant
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Bloo SpecterForce
9 days ago
000
Detects one MAC address obtaining an unusual number of distinct leases. Legitimate
devices hold a lease and renew it. Rapid cycling suggests either MAC spoofing or a
device deliberately churning addresses to frustrate tracking and evade controls bound
to an IP.

Onboarding: WIN-DHCP is ingested via Syslog (Bloo extractor 79).
Integration guide: https://bloo.io/docs/hypercloud/syslog-connector

BQL (Bloo Query Language):

stream=dhcp where sourcename='WIN-DHCP' and action='IP_LEASED'
| duration 1h
| groupby macaddress
| select macaddress, distinct_count(srcip)
| having distinct_count_col1 > 5
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Siddhant Mishra@Siddhant
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Bloo SpecterForce
9 days ago
000
Detects an endpoint flipping between compliant and non-compliant repeatedly in a
short period. Stable devices stay in one state. Rapid oscillation suggests something
is being disabled and restored — a security agent stopped and restarted, or posture
data being manipulated to satisfy the check only when it is being observed.

Onboarding: FORESCOUT is ingested via Syslog (CEF) (Bloo extractor 247).
Integration guide: https://bloo.io/docs/hypercloud/syslog-connector

BQL (Bloo Query Language):

stream=compliance where sourcename='FORESCOUT' and action='COMPLIANCE_CHECK'
| duration 1h
| groupby user, policy
| select user, policy, count(*) as cnt
| having cnt > 6
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Siddhant Mishra@Siddhant
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Bloo SpecterForce
9 days ago
000
The following analytic detects a process enabling the "SeDebugPrivilege" privilege token. It leverages Windows Security Event Logs with EventCode 4703, filtering out common legitimate processes. This activity is significant because SeDebugPrivilege allows a process to inspect and modify the memory of other processes, potentially leading to credential dumping or code injection. If confirmed malicious, an attacker could gain extensive control over system processes, enabling them to escalate privileges, persist in the environment, or access sensitive information.
Splunk Security@SplunkSecurity
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Splunk Security Content
18 days ago
207
Detects known Indicators of Compromise (IOCs) associated with the Ebury Linux backdoor, including specific file hashes, implants like libkeyutils.so.1.10.2, malicious IP connections, and associated network/email artifacts using Microsoft Defender XDR advanced hunting.
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Arnold Chan@slaz
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Midnight Slayer
9 days ago
000
Detects known Indicators of Compromise (IOCs) associated with the Ebury Linux backdoor, including specific file hashes, implants like libkeyutils.so.1.10.2, malicious IP connections, and associated network/email artifacts using Microsoft Defender XDR advanced hunting.
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Arnold Chan@slaz
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Detection & Hunting Community
9 days ago
000
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