malware

Qilin S1242

Type: malware
Platforms: ESXi, Windows, Linux
Created: 26 September 2025
Last modified: 23 April 2026

Qilin is a ransomware family operated as a ransomware-as-a-service (RaaS) that has been active since at least 2022. It includes variants written in Go and Rust capable of targeting Windows, Linux, and VMware ESXi environments. Qilin shares functionality overlaps with Black Basta, REvil, and BlackCat ransomware. Qilin affiliates have targeted multiple entities worldwide with the majority of victims in the US, France, Canada, and the UK, primarily in the manufacturing, technology, financial services, and healthcare sectors.[1][2][3][4][5]

TechniquesTop 1%

TacticsTop 2%

Threat groupsunranked

CampaignsNone recorded

Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.

Select	Description	Category	Status	Event	OS	Product	MITRE ATT&CK	CVEs	Severity	Author	Created	Updated	ID
Splunk	The following analytic detects attempts to dump the LSASS process memory, a common technique in credential dumping attacks. (...)	Generic	stable	process_access	windows	Sysmon	Credential Access OS Credential Dumping LSASS Memory	-	medium	Patrick Bareiss, Splunk	2019-12-11	2026-10-09	fb4c31b0-13e8-4155-8aa5-24de4b8d6717
	Detects file access requests to files ending with either the ".hive"/".reg" extension, usually associated with Windows Registry backups.	Hunting	test	file_access	windows	-	Persistence, Defense Impairment Modify Registry	-	low	frack113	2023-09-15	2024-07-29	337a31c6-46c4-46be-886a-260d7aa78cac
	Detects access to ADMIN$ network share	Generic	test	network_connection	windows	WinEventLog Security	Lateral Movement Remote Services SMB/Windows Admin Shares	-	low	Florian Roth (Nextron Systems)	2017-03-04	2024-01-16	098d7118-55bc-4912-a836-dc6483a8d150
Splunk	The following analytic identifies access to the /api/v1/configuration/users/user-roles/user-role/rest-userrole1/web/web-bookmarks/bookmark endpoint, which is associated with CVE-2023-46805 and CVE-2024-21887 vulnerabilities. (...)	Generic	stable	webserver	-	Suricata	Initial Access Exploit Public-Facing Application	CVE-2024-21887 CVE-2023-46805 CVE-2023-46085	medium	Michael Haag, Splunk	2024-01-17	2026-05-13	15838756-f425-43fa-9d88-a7f88063e81a
	Detect set Notification_Suppress to 1 to disable the Windows security center notification	Generic	test	registry_set	windows	Sysmon · WinEventLog Security	Persistence, Defense Impairment Modify Registry	-	medium	frack113	2022-08-19	2023-08-17	0c93308a-3f1b-40a9-b649-57ea1a1c1d63
	Detects usage of the "Get-AdComputer" to enumerate Computers or properties within Active Directory.	Generic	test	ps_script	windows	PowerShell	Discovery Account Discovery Domain Account Discovery Remote System Discovery	-	low	frack113	2022-03-17	2023-07-08	36bed6b2-e9a0-4fff-beeb-413a92b86138
	Detects the execution of Sysinternals ADExplorer with the "-snapshot" flag in order to save a local copy of the active directory database. (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Discovery Account Discovery Domain Account Discovery Domain Trust Discovery Discovery Permission Groups Discovery Domain Groups	-	medium	Nasreddine Bencherchali (Nextron Systems)	2023-03-14	2025-07-09	9212f354-7775-4e28-9c9f-8f0a4544e664
	Detects usage of the "Get-AdGroup" cmdlet to enumerate Groups within Active Directory	Generic	test	ps_script	windows	PowerShell	Discovery Permission Groups Discovery Domain Groups	-	low	frack113	2022-03-17	2022-11-17	8c3a6607-b7dc-4f0d-a646-ef38c00b76ee
	Detects the execution of "csvde.exe" in order to export organizational Active Directory structure.	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Discovery Account Discovery Domain Account	-	medium	Nasreddine Bencherchali (Nextron Systems)	2023-03-14	—	e5d36acd-acb4-4c6f-a13f-9eb203d50099
	Detect priv users or groups recon based on 4661 eventid and known privileged users or groups SIDs	Generic	test	-	windows	WinEventLog Security	Discovery Account Discovery Domain Account	-	high	Samir Bousseaden	2019-04-03	2022-07-13	35ba1d85-724d-42a3-889f-2e2362bcaf23
	Detect set DisallowRun to 1 to prevent user running specific computer program	Generic	test	registry_set	windows	Sysmon · WinEventLog Security	Persistence, Defense Impairment Modify Registry	-	medium	frack113	2022-08-19	2023-08-17	275641a5-a492-45e2-a817-7c81e9d9d3e9
Splunk	The following analytic detects the use of commands to add or set exclusions in Windows Defender. It (...)	Generic	stable	process_creation	windows	Sysmon · WinEventLog Security · CrowdStrike	Defense Impairment Disable or Modify Tools	-	medium	Teoderick Contreras, Nasreddine Bencherchali, Splunk	2021-11-25	2026-06-08	773b66fe-4dd9-11ec-8289-acde48001122
	Detects execution of "reg.exe" commands with the "add" or "copy" flags on safe boot registry keys. (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Defense Impairment Disable or Modify Tools	-	high	Nasreddine Bencherchali (Nextron Systems)	2022-09-02	2024-03-19	d7662ff6-9e97-4596-a61d-9839e32dee8d
	Detects the dual use tool ADExplorer writing a complete AD snapshot into a .dat file. (...)	Generic	experimental	file_event	windows	Sysmon	Discovery Account Discovery Domain Account Discovery Domain Trust Discovery Discovery Permission Groups Discovery Domain Groups	-	medium	Arnim Rupp (Nextron Systems), Thomas Patzke	2025-07-09	—	0a1255c5-d732-4b62-ac02-b5152d34fb83
Splunk	The following analytic detects potential exploitation attempts against Adobe ColdFusion vulnerabilities CVE-2023-29298 and CVE-2023-26360. (...)	Anomaly	stable	webserver	-	Suricata	Initial Access Exploit Public-Facing Application	CVE-2023-29298 CVE-2023-26360	medium	Michael Haag, Splunk	2023-08-23	2026-05-13	d6821c0b-fcdc-4c95-a77f-e10752fae41a
Splunk	The following analytic detects potential exploitation of the Adobe ColdFusion vulnerability, CVE-2023-26360, which allows unauthenticated arbitrary file read. (...)	Anomaly	stable	webserver	-	Suricata	Initial Access Exploit Public-Facing Application	CVE-2023-26360	medium	Michael Haag, Splunk	2023-08-23	2026-05-13	695aceae-21db-4e7f-93ac-a52e39d02b93
	Detects the deletion of the "Zone.Identifier" ADS. (...)	Hunting	test	file_delete	windows	Sysmon	Stealth Indicator Removal File Deletion	-	low	frack113	2023-09-04	—	7eac0a16-5832-4e81-865f-0268a6d19e4b
	Detects the deletion of the "Zone.Identifier" ADS by an uncommon process. (...)	Generic	test	file_delete	windows	Sysmon	Stealth Indicator Removal File Deletion	-	medium	Nasreddine Bencherchali (Nextron Systems)	2023-09-04	2025-07-04	3109530e-ab47-4cc6-a953-cac5ebcc93ae
	Detects suspicious access to URLs that was noticed in cases in which attackers exploitated the ADSel (...)	Emerging	test	webserver	-	-	Initial Access Exploit Public-Facing Application	CVE-2021-40539	high	Tobias Michalski (Nextron Systems), Max Altgelt (Nextron Systems)	2021-09-20	2023-01-02	6702b13c-e421-44cc-ab33-42cc25570f11
Splunk	The following analytic detects the use of the `[Adsisearcher]` type accelerator in PowerShell to query Active Directory for domain users. (...)	Generic	stable	ps_script	windows	PowerShell	Discovery Account Discovery Domain Account	-	medium	Teoderick Contreras, Mauricio Velazco, Splunk	2021-08-25	2026-10-02	de7fcadc-04f3-11ec-a241-acde48001122
Splunk	The following analytic detects the execution of network scanning utilities such as Advanced IP Scanner or Advanced Port Scanner. (...)	Anomaly	stable	process_creation	windows	Sysmon · WinEventLog Security · CrowdStrike	Discovery Network Service Discovery Discovery Network Share Discovery	-	medium	Nasreddine Bencherchali, Splunk	2025-10-24	2026-05-13	9a4e50c7-5b62-4d52-93b4-f2b61332e9a5
	Detects the deletion of all backups or system state backups via "wbadmin.exe". (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Impact Inhibit System Recovery	-	high	frack113, Nasreddine Bencherchali (Nextron Systems)	2021-12-13	2024-05-10	639c9081-f482-47d3-a0bd-ddee3d4ecd76
	Detect enable rdp feature to allow specific user to rdp connect on the targeted machine	Generic	test	registry_set	windows	Sysmon · WinEventLog Security	Persistence, Defense Impairment Modify Registry	-	medium	frack113	2022-08-19	2023-08-17	37b437cf-3fc5-4c8e-9c94-1d7c9aff842b
	Detects alternate PowerShell hosts potentially bypassing detections looking for powershell.exe	Generic	test	ps_module	windows	PowerShell	Execution Command and Scripting Interpreter PowerShell	-	medium	Roberto Rodriguez @Cyb3rWard0g	2019-08-11	2025-10-17	64e8e417-c19a-475a-8d19-98ea705394cc
	Detects alternate PowerShell hosts potentially bypassing detections looking for powershell.exe	Generic	test	pipe_created	windows	Sysmon	Execution Command and Scripting Interpreter PowerShell	-	medium	Roberto Rodriguez @Cyb3rWard0g, Tim Shelton	2019-09-12	2025-10-07	58cb02d5-78ce-4692-b3e1-dce850aae41a
	Detects Windows Installer service (msiexec.exe) spawning "cmd" or "powershell"	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Privilege Escalation Abuse Elevation Control Mechanism Bypass User Account Control	-	medium	Teymur Kheirkhabarov (idea), Mangatas Tondang (rule), oscd.community	2020-10-13	2022-10-20	1e53dd56-8d83-4eb4-a43e-b790a05510aa
	This rule will looks any process with low privilege launching Windows Installer service (msiexec.exe (...)	Unsupported	unsupported	process_creation	windows	Sysmon · WinEventLog Security	Privilege Escalation Abuse Elevation Control Mechanism Bypass User Account Control	-	high	Teymur Kheirkhabarov (idea), Mangatas Tondang (rule), oscd.community	2020-10-13	—	078235c5-6ec5-48e7-94b2-f8b5474379ea
	Detects Windows Installer service (msiexec.exe) trying to install MSI packages with SYSTEM privilege	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Privilege Escalation Abuse Elevation Control Mechanism Bypass User Account Control	-	medium	Teymur Kheirkhabarov (idea), Mangatas Tondang (rule), oscd.community	2020-10-13	2024-12-01	cd951fdc-4b2f-47f5-ba99-a33bf61e3770
	Detects code fragments found in small and obfuscated AMSI bypass PowerShell scripts	Generic	test	ps_script	windows	PowerShell	Defense Impairment Disable or Modify Tools	-	high	Florian Roth (Nextron Systems)	2022-11-09	—	e0d6c087-2d1c-47fd-8799-3904103c5a98
	Detects attempts to disable AMSI (Anti-Malware Scan Interface) by modifying the AmsiEnable registry value. (...)	Generic	experimental	registry_set	windows	Sysmon · WinEventLog Security	Defense Impairment Disable or Modify Tools	-	high	Swachchhanda Shrawan Poudel (Nextron Systems)	2025-12-25	—	aa37cbb0-da36-42cb-a90f-fdf216fc7467
	Detects loading of Amsi.dll by uncommon processes	Hunting	test	image_load	windows	Sysmon	Impact Inhibit System Recovery	-	low	frack113	2023-03-12	2026-06-29	facd1549-e416-48e0-b8c4-41d7215eedc8
	Detects a highly relevant Antivirus alert that reports APT malware. (...)	Generic	experimental	antivirus	-	-	Execution Exploitation for Client Execution Command and Control Remote Access Tools Remote Desktop Software	-	critical	Arnim Rupp (Nextron Systems)	2026-06-15	—	101a1877-2cf4-474d-abfd-7f6ac4788d1a
	Detects a highly relevant Antivirus alert that reports an exploitation framework. (...)	Generic	stable	antivirus	-	-	Execution Exploitation for Client Execution Command and Control Remote Access Tools Remote Desktop Software	-	critical	Florian Roth (Nextron Systems), Arnim Rupp	2018-09-09	2026-06-15	238527ad-3c2c-4e4f-a1f6-92fd63adb864
	Detects a highly relevant Antivirus alert that reports password dumpers and stealers. (...)	Generic	stable	antivirus	-	-	Credential Access OS Credential Dumping LSASS Memory Security Account Manager Credential Access Steal or Forge Kerberos Tickets	-	critical	Florian Roth (Nextron Systems), Arnim Rupp	2018-09-09	2026-06-15	78cc2dd2-7d20-4d32-93ff-057084c38b93
	Detects a highly relevant Antivirus alert that reports ransomware. (...)	Generic	test	antivirus	-	-	Impact Data Encrypted for Impact	-	critical	Florian Roth (Nextron Systems), Arnim Rupp	2022-05-12	2026-06-15	4c6ca276-d4d0-4a8c-9e4c-d69832f8671f
	Detects a highly relevant Antivirus alert that reports a remote access tool. (...)	Generic	experimental	antivirus	-	-	Execution Exploitation for Client Execution Command and Control Remote Access Tools Remote Desktop Software	-	critical	Arnim Rupp (Nextron Systems)	2026-06-15	—	97233998-3838-4581-88c6-f1d19d3993fb
	Detects activity that indicates a user disabling the ability for Antivirus mini filter to inspect a "Dev Drive".	Generic	test	registry_set	windows	Sysmon · WinEventLog Security	Defense Impairment Disable or Modify Tools	-	high	@kostastsale, Nasreddine Bencherchali (Nextron Systems)	2023-11-05	2024-08-16	31e124fb-5dc4-42a0-83b3-44a69c77b271
	An adversary may use legitimate desktop support and remote access software, such as Team Viewer, Go2Assist, LogMein, AmmyyAdmin, etc, to establish an interactive command and control channel to target systems within networks. (...)	Generic	test	file_event	windows	Sysmon	Command and Control Remote Access Tools Remote Desktop Software	-	medium	frack113	2022-02-11	2024-07-20	0b9ad457-2554-44c1-82c2-d56a99c42377
	Detects attempts to exploit an apache spark server via CVE-2014-6287 from a commandline perspective	Emerging	test	process_creation	linux	Sysmon	Initial Access Exploit Public-Facing Application	CVE-2014-6287 CVE-2022-33891	high	Nasreddine Bencherchali (Nextron Systems)	2022-07-20	—	c8a5f584-cdc8-42cc-8cce-0398e4265de3
	Detects attempts to exploit an apache spark server via CVE-2014-6287 from a weblogs perspective	Emerging	test	webserver	-	-	Initial Access Exploit Public-Facing Application	CVE-2014-6287 CVE-2022-33891	high	Nasreddine Bencherchali (Nextron Systems)	2022-07-19	2023-01-02	1a9a04fd-02d1-465c-abad-d733fd409f9c
	Detects an issue in apache logs that reports threading related errors	Generic	test	-	-	Apache	Initial Access Exploit Public-Facing Application Lateral Movement Exploitation of Remote Services	-	medium	Florian Roth (Nextron Systems)	2019-01-22	2021-11-27	e9a2b582-3f6a-48ac-b4a1-6849cdc50b3c
	Detects the removal or uninstallation of an application via "Wmic.EXE".	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Windows Management Instrumentation	-	medium	frack113	2022-01-28	2024-07-02	b53317a0-8acf-4fd1-8de8-a5401e776b96
	Detects an attempt to terminate a process via "wmic" with the "call terminate" flag. (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Windows Management Instrumentation	-	medium	Nasreddine Bencherchali (Nextron Systems)	2023-09-11	—	49d9671b-0a0a-4c09-8280-d215bfd30662
	An application has been removed. (...)	Generic	test	-	windows	WinEventLog Application	Impact Service Stop	-	low	frack113	2022-01-28	2022-09-17	570ae5ec-33dc-427c-b815-db86228ad43e
	Detects when AppLocker "Audit only" enforcement mode reports that an Application, DLL, Script, MSI, or Packaged-App would have been blocked if AppLocker "Enforce rules" enforcement mode was enabled.	Generic	experimental	-	windows	AppLocker	Execution Command and Scripting Interpreter PowerShell Windows Command Shell Visual Basic Python Execution User Execution Malicious File	-	medium	heyyanu	2026-03-26	—	557e3bd3-7f21-495d-8d50-7c8bdfb8041c
	Detects when AppLocker prevents the execution of an Application, DLL, Script, MSI, or Packaged-App from running.	Generic	test	-	windows	AppLocker	Execution Command and Scripting Interpreter PowerShell Windows Command Shell Visual Basic Python Execution User Execution Malicious File	-	medium	Pushkarev Dmitry	2020-06-28	2025-12-03	401e5d00-b944-11ea-8f9a-00163ecd60ae
	Detects APT31 Judgement Panda activity as described in the Crowdstrike 2019 Global Threat Report	Emerging	test	process_creation	windows	Sysmon · WinEventLog Security	Collection Archive Collected Data Archive via Utility Credential Access OS Credential Dumping LSASS Memory	-	critical	Florian Roth (Nextron Systems)	2019-02-21	2023-03-10	03e2746e-2b31-42f1-ab7a-eb39365b2422
	The .SettingContent-ms file type was introduced in Windows 10 and allows a user to create "shortcuts" to various Windows 10 setting pages. (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Initial Access Phishing Spearphishing Attachment Execution User Execution	-	medium	Sreeman	2020-03-13	2022-04-14	24de4f3b-804c-4165-b442-5a06a2302c7e
	Detects exploitation of vulnerabilities in Arcadyan routers as reported in CVE-2021-20090 and CVE-2021-20091.	Emerging	test	webserver	-	-	Initial Access Exploit Public-Facing Application	CVE-2021-20091 CVE-2021-20090	critical	Bhabesh Raj	2021-08-24	2023-01-02	f0500377-bc70-425d-ac8c-e956cd906871
Splunk	The following analytic detects the creation of AWS KMS keys with an encryption policy accessible to everyone, including external entities. (...)	Generic	stable	cloud_audit	-	AWS CloudTrail · AWS	Impact Data Encrypted for Impact	-	medium	Patrick Bareiss, Splunk	2020-10-27	2026-05-13	16ae9076-d1d5-411c-8fdd-457504b33dac

Title

Description

Qilin S1242

Qilin S1242

Qilin MITRE reference S1242

Qilin MITRE reference S1242

Standing S1242

Reach

Coverage

Qilin detections S1242