Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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IOC sweep (SHA256, domains, URLs, IPs, sender emails) for the RedFlick-style VHDX/LNK/WebDAV campaign against Moldovan and Ukrainian civil society, with false-positive controls.
Detects hosts exhibiting multiple persistence mechanisms (Run keys, Scheduled Tasks, and Windows Services) within a short timeframe, indicating potential adversary persistence setup.
Detects the creation of persistence artifacts associated with the 'gh-token-monitor' service utilized by the Shai-Hulud worm across Linux systemd user services, macOS LaunchAgents, and Windows scheduled tasks or local application directories. This service acts as a dead-man's switch designed to wipe the user's home directory if the stolen GitHub token is revoked.
Detects scheduled task creation observed through ADAudit Plus. Scheduled tasks are a
long-standing persistence and remote execution mechanism, and seeing them at the
directory audit layer catches creation across the domain rather than host by host.
Onboarding: MANAGE-ENGINE-ADAUDIT-PLUS is ingested via Syslog (KV) (Bloo extractor 830).
Integration guide: https://bloo.io/docs/hypercloud/syslog-connector
BQL (Bloo Query Language):
stream=win-audit where sourcename='MANAGE-ENGINE-ADAUDIT-PLUS'
and action='TASK_CREATED'
| groupby user, object, commandline, domain
long-standing persistence and remote execution mechanism, and seeing them at the
directory audit layer catches creation across the domain rather than host by host.
Onboarding: MANAGE-ENGINE-ADAUDIT-PLUS is ingested via Syslog (KV) (Bloo extractor 830).
Integration guide: https://bloo.io/docs/hypercloud/syslog-connector
BQL (Bloo Query Language):
stream=win-audit where sourcename='MANAGE-ENGINE-ADAUDIT-PLUS'
and action='TASK_CREATED'
| groupby user, object, commandline, domain
IOC sweep (SHA256, domains, URLs, IPs, sender emails) for the RedFlick-style VHDX/LNK/WebDAV campaign against Moldovan and Ukrainian civil society, with false-positive controls.
IOC sweep (SHA256, domains, URLs, IPs, sender emails) for the RedFlick-style VHDX/LNK/WebDAV campaign against Moldovan and Ukrainian civil society, with false-positive controls.
IOC sweep (SHA256, domains, URLs, IPs, sender emails) for the RedFlick-style VHDX/LNK/WebDAV campaign against Moldovan and Ukrainian civil society, with false-positive controls.
IOC sweep (SHA256, domains, URLs, IPs, sender emails) for the RedFlick-style VHDX/LNK/WebDAV campaign against Moldovan and Ukrainian civil society, with false-positive controls.
Detects schtasks.exe creating a scheduled task named "Windows Defender Advanced Threat Protection Service" that launches defender.exe (a renamed Sangfor executable abused for DLL sideloading) with SYSTEM privileges at startup. This is the exact persistence mechanism HoneyMyte (Mustang Panda) uses to relaunch the CoolClient backdoor chain from the fake "Microsoft\Windows Defender" directory on every boot.
Detects crontab modifications or suspicious command execution spawned by the cron daemon on macOS devices, indicating potential persistence or scheduled task abuse.
Detects schtasks.exe creating a scheduled task named "Windows Defender Advanced Threat Protection Service" that launches defender.exe (a renamed Sangfor executable abused for DLL sideloading) with SYSTEM privileges at startup. This is the exact persistence mechanism HoneyMyte (Mustang Panda) uses to relaunch the CoolClient backdoor chain from the fake "Microsoft\Windows Defender" directory on every boot.
The following analytic detects the spawning of a PowerShell process as a child or grandchild of commonly abused processes like services.exe, wmiprvse.exe, svchost.exe, wsmprovhost.exe, and mmc.exe.
It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process and parent process names, as well as command-line executions.
This activity is significant as it could indicates lateral movement or remote code execution attempts by adversaries.
If confirmed malicious, this behavior could allow attackers to execute code remotely, escalate privileges, or persist within the environment.
It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process and parent process names, as well as command-line executions.
This activity is significant as it could indicates lateral movement or remote code execution attempts by adversaries.
If confirmed malicious, this behavior could allow attackers to execute code remotely, escalate privileges, or persist within the environment.
Detects creation of a scheduled task named "Windows Defender Advanced
Threat Protection Service" configured to run at system startup with SYSTEM privileges
and launch an executable named defender.exe. HoneyMyte (Mustang Panda) used this exact
schtasks command to establish boot persistence for the CoolClient backdoor sideloader,
masquerading the task and binary as a legitimate Windows Defender component.
Threat Protection Service" configured to run at system startup with SYSTEM privileges
and launch an executable named defender.exe. HoneyMyte (Mustang Panda) used this exact
schtasks command to establish boot persistence for the CoolClient backdoor sideloader,
masquerading the task and binary as a legitimate Windows Defender component.
The following analytic detects the creation or deletion of scheduled tasks via schtasks.exe when invoked with create or delete flags, specifically focusing on those executions where the process includes additional parameters such as /tr, /sc, or /ru. The detection uses Endpoint Detection and Response (EDR) telemetry mapped to the Endpoint data model, and filters out events originating from trusted system paths like C:\Windows\System32 or C:\Program Files. It further narrows results to cases where schtasks.exe is launched by potentially suspicious parent processes such as cmd.exe, wscript.exe, or cscript.exe, and excludes service accounts. This behavior may indicate adversary efforts to gain persistence or evade detection by manipulating scheduled tasks using scripts or command shells. If confirmed malicious, such activity could lead to unauthorized code execution or the removal of monitoring mechanisms on endpoints.
The following analytic detects potential malicious activities involving PowerShell's task scheduling cmdlets. It leverages PowerShell Script Block Logging (EventCode 4104) to identify unusual or suspicious use of cmdlets like 'New-ScheduledTask' and 'Set-ScheduledTask'. This activity is significant as attackers often use these cmdlets for persistence and remote execution of malicious code. If confirmed malicious, this could allow attackers to maintain access, deliver additional payloads, or execute ransomware, leading to data theft or other severe impacts. Immediate investigation and mitigation are crucial to prevent further compromise.
Detects a behavioral chain where PowerShell stages a hidden base64-encoded command and schedules a VBScript task, or PowerShell fetches an upgrade.txt file via web client methods for execution.
Detects a behavioral chain where PowerShell stages a hidden base64-encoded command and schedules a VBScript task, or PowerShell fetches an upgrade.txt file via web client methods for execution.
Detects persistence mechanisms associated with the MATCHBOIL campaign, identifying instances where a registry run key and a scheduled task pointing to an application data (%LOCALAPPDATA%) path are created by the same process within a short window, or where known specific scheduled task names and run value names are observed.
Detects a behavioral chain where PowerShell stages a hidden base64-encoded command and schedules a VBScript task, or PowerShell fetches an upgrade.txt file via web client methods for execution.
Detects a behavioral chain where PowerShell stages a hidden base64-encoded command and schedules a VBScript task, or PowerShell fetches an upgrade.txt file via web client methods for execution.
The following analytic detects when the Task Scheduler service ("svchost.exe -k netsvcs -p -s Schedule") spawns common command line, scripting, or shell execution binaries such as "powershell.exe" or "cmd.exe".
This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process and parent process relationships.
This activity is significant as attackers often abuse the Task Scheduler for execution and persistence, blending in with legitimate Windows operations.
If confirmed malicious, this could allow attackers to execute arbitrary code, maintain persistence, or escalate privileges within the environment.
This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process and parent process relationships.
This activity is significant as attackers often abuse the Task Scheduler for execution and persistence, blending in with legitimate Windows operations.
If confirmed malicious, this could allow attackers to execute arbitrary code, maintain persistence, or escalate privileges within the environment.
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