group

Suckfly G0039

Created: 31 May 2017
Last modified: 31 July 2026
Alias: Suckfly

Suckfly is a China-based threat group that has been active since at least 2014. [1]

TechniquesBottom 16%

Tactics48th pct

Tool or malwareBottom 23%

CampaignsNone recorded

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

Standing G0039

Reach is how much of ATT&CK this group touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 176 ATT&CK groups only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.

Select	Description	Category	Status	Event	OS	Product	MITRE ATT&CK	CVEs	Severity	Author	Created	Updated	ID	Refs
	Detects file access requests to browser credential stores by uncommon processes. (...)	Hunting	test	file_access	windows	-	Credential Access OS Credential Dumping	-	low	frack113, X__Junior (Nextron Systems)	2022-04-09	2024-07-29	91cb43db-302a-47e3-b3c8-7ede481e27bf
	Detects file access requests to chromium based browser sensitive files by uncommon processes. (...)	Hunting	test	file_access	windows	-	Credential Access OS Credential Dumping	-	low	X__Junior (Nextron Systems)	2024-07-29	—	c5f37810-a85f-4186-81e9-33f23abb4141
	Detects file access requests to crypto currency files by uncommon processes. (...)	Generic	test	file_access	windows	-	Credential Access OS Credential Dumping	-	medium	X__Junior (Nextron Systems)	2024-07-29	—	f41b0311-44f9-44f0-816d-dd45e39d4bc8
	Detects accounts that are created or deleted by non-approved users.	Placeholder	test	cloud_audit	-	Azure Audit Logs · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Mark Morowczynski '@markmorow', MikeDuddington, '@dudders1'	2022-08-11	2023-12-15	c98184ba-4a27-4e10-b7b7-da48e71f4d25
	Detects when an account was created and deleted in a short period of time.	Generic	test	cloud_audit	-	Azure Audit Logs · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	high	Mark Morowczynski '@markmorow', MikeDuddington, '@dudders1', Tim Shelton	2022-08-11	2022-08-18	6f583da0-3a90-4566-a4ed-83c09fe18bbf
	This method uses uncommon error codes on failed logons to determine suspicious activity and tampering with accounts that have been disabled or somehow restricted.	Generic	test	authentication	windows	WinEventLog Security	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Florian Roth (Nextron Systems)	2017-02-19	2025-10-17	9eb99343-d336-4020-a3cd-67f3819e68ee
	Identifies that users were active from an IP address that has been identified as an anonymous proxy IP address.	Generic	test	-	-	Azure Risk Detection · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	high	Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'	2023-09-03	—	be4d9c86-d702-4030-b52e-c7859110e5e8
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 use of Advanced IP Scanner. (...)	Generic	test	file_event	windows	Sysmon	Discovery Network Service Discovery	-	medium	@ROxPinTeddy	2020-05-12	2022-11-29	fed85bf9-e075-4280-9159-fbe8a023d6fa
	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
	Device code flow is an OAuth 2.0 protocol flow specifically for input constrained devices and is not used in all environments. (...)	Generic	test	authentication	-	Azure Sign-in Logs · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Mark Morowczynski '@markmorow', Bailey Bercik '@baileybercik'	2022-06-01	—	248649b7-d64f-46f0-9fb2-a52774166fb5
	Resource owner password credentials (ROPC) should be avoided if at all possible as this requires the user to expose their current password credentials to the application directly. (...)	Generic	test	authentication	-	Azure Sign-in Logs · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Mark Morowczynski '@markmorow', Bailey Bercik '@baileybercik'	2022-06-01	—	55695bc0-c8cf-461f-a379-2535f563c854
	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
Splunk	The following analytic detects updates to the SAML provider in AWS. (...)	Generic	stable	cloud_audit	-	AWS CloudTrail · AWS	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Patrick Bareiss, Splunk	2022-10-04	2026-05-13	635c26cc-0fd1-4098-8ec9-824bf9544b11
Splunk	The following analytic detects the execution of tools commonly exploited by cybercriminals, such as those used for unauthorized access, network scanning, privilege escalation, password dumping or data exfiltration. (...)	Generic	stable	process_creation	windows	Sysmon · WinEventLog Security · CrowdStrike · Cisco NVM · Cisco	Reconnaissance Active Scanning Stealth Masquerading Match Legitimate Resource Name or Location Credential Access OS Credential Dumping	-	medium	Bhavin Patel, Splunk, sventec, Github Community	2021-07-12	2026-09-22	a51bfe1a-94f0-48cc-b4e4-16a110145893	-
	Identifies two sign-ins originating from geographically distant locations, where at least one of the locations may also be atypical for the user, given past behavior.	Generic	test	-	-	Azure Risk Detection · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	high	Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'	2023-09-03	—	1a41023f-1e70-4026-921a-4d9341a9038e
	Detect when authentications to important application(s) only required single-factor authentication	Placeholder	test	authentication	-	Azure Sign-in Logs · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	MikeDuddington, '@dudders1'	2022-07-28	2026-05-08	f272fb46-25f2-422c-b667-45837994980f
Splunk	The following analytic identifies access denied error when attempting to invoke AWS Bedrock models. (...)	Generic	stable	cloud_audit	-	AWS CloudTrail · AWS	Lateral Movement Use Alternate Authentication Material Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Bhavin Patel, Splunk	2025-03-25	2026-05-13	c53a8e62-f741-11ee-9f6e-acde48001122
	Detects changes to the EC2 instance startup script. (...)	Generic	test	cloud_audit	-	AWS CloudTrail · AWS	Execution Command and Scripting Interpreter PowerShell Windows Command Shell Unix Shell	-	high	faloker	2020-02-12	2022-06-07	1ab3c5ed-5baf-417b-bb6b-78ca33f6c3df
	Detects the import of SSH key pairs into AWS EC2, which may indicate an attacker attempting to gain unauthorized access to instances. (...)	Generic	experimental	cloud_audit	-	AWS CloudTrail · AWS	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Ivan Saakov	2024-12-19	—	92f84194-8d9a-4ee0-8699-c30bfac59780
	Detects when an user creates or invokes a lambda function.	Unsupported	unsupported	cloud_audit	-	AWS CloudTrail · AWS	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	low	Austin Songer @austinsonger	2021-10-03	2023-03-24	d914951b-52c8-485f-875e-86abab710c0b
Splunk	The following analytic detects updates to the SAML provider in AWS. (...)	Generic	stable	account_management	-	AWS CloudTrail · AWS	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Rod Soto, Splunk	2021-01-26	2026-05-13	2f0604c6-6030-11eb-ae93-0242ac130002
	Identifies when suspicious SAML activity has occurred in AWS. (...)	Generic	test	cloud_audit	-	AWS CloudTrail · AWS	Privilege Escalation Abuse Elevation Control Mechanism Lateral Movement Use Alternate Authentication Material Application Access Token Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Austin Songer	2021-09-22	2022-12-18	f43f5d2f-3f2a-4cc8-b1af-81fde7dbaf0e
	Detects the specific Windows execution chain and process tree associated with the Axios NPM supply chain compromise. (...)	Emerging	experimental	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter Windows Command Shell Visual Basic Command and Control Ingress Tool Transfer Initial Access Supply Chain Compromise Compromise Software Supply Chain	-	high	Swachchhanda Shrawan Poudel (Nextron Systems)	2026-04-01	—	f6c27ecc-d890-4452-80e6-2e274a10e097
Splunk	The following analytic detects unusual authentication activity in Azure AD, specifically when a single user account has over 8 authentication attempts using 3+ unique application IDs and 5+ unique user agents within a short period. (...)	Anomaly	stable	authentication	-	Microsoft 365	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Mauricio Velazco, Splunk	2023-11-16	2026-05-13	5d8bb1f0-f65a-4b4e-af2e-fcdb88276314
	Indicates user activity that is unusual for the user or consistent with known attack patterns.	Generic	test	-	-	Azure Risk Detection · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	high	Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'	2023-09-07	—	a2cb56ff-4f46-437a-a0fa-ffa4d1303cba
	Identifies when an user or application modified the federation settings on the domain.	Generic	test	cloud_audit	-	Azure Audit Logs · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Austin Songer	2021-09-06	2022-06-08	352a54e1-74ba-4929-9d47-8193d67aba1e
	Identifies when an admission controller is executed in Azure Kubernetes. (...)	Generic	test	cloud_audit	-	Azure Activity Logs · Azure	Credential Access Unsecured Credentials Container API Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Austin Songer @austinsonger	2021-11-25	2022-12-18	a61a3c56-4ce2-4351-a079-88ae4cbd2b58
	Detects a successful login to the Microsoft Intune Company Portal which could allow bypassing Conditional Access Policies and InTune device trust using a tool like TokenSmith.	Generic	experimental	-	-	Audit · Microsoft 365	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	high	Josh Nickels, Marius Rothenbücher	2025-01-08	—	13f2d3f5-6497-44a7-bf5f-dc13ffafe5dc
	Detects when a user has been elevated to manage all Azure Subscriptions. (...)	Generic	test	cloud_audit	-	Azure Audit Logs · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	high	Austin Songer @austinsonger	2021-11-26	2026-09-26	ca9bf243-465e-494a-9e54-bf9fc239057d
	Detects when there is a interruption in the authentication process.	Generic	test	authentication	-	Azure Sign-in Logs · Azure	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Austin Songer @austinsonger	2021-11-26	2022-12-18	8366030e-7216-476b-9927-271d79f13cf3
	Detects using Rpcping.exe to send a RPC test connection to the target server (-s) and force the NTLM hash to be sent in the process.	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Credential Access OS Credential Dumping	-	medium	Julia Fomina, oscd.community	2020-10-09	2025-10-31	93671f99-04eb-4ab4-a161-70d446a84003
	Detects BGP failures which may be indicative of brute force attacks to manipulate routing	Generic	test	-	-	BGP · Cisco	Credential Access, Collection Adversary-in-the-Middle Credential Access Brute Force Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	low	Tim Brown	2023-01-09	2023-01-23	56fa3cd6-f8d6-4520-a8c7-607292971886
Splunk	This analytic detects the creation of privileged user accounts on Cisco IOS devices, which could indicate an attacker establishing backdoor access. (...)	Anomaly	stable	configuration_change	-	Cisco IOS · Cisco	Persistence Create Account Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	CVE-2018-0171	medium	Bhavin Patel, Michael Haag, Splunk	2025-08-21	2026-05-13	63e3aff9-45d7-4d41-bcdb-9da561fb4533
Splunk	This analytic detects bursts of ping, SSH, and Telnet commands issued from Cisco IOS or NX-OS devices. (...)	Anomaly	stable	network_device	-	Cisco IOS · Cisco	Discovery Network Service Discovery Lateral Movement Remote Services SSH Discovery Remote System Discovery	-	medium	Nasreddine Bencherchali	2026-05-19	2026-05-20	efb20922-17bc-4fb0-880c-be50cfc100dd
Splunk	This analytic detects Cisco IOS-XE WebUI authentication failure and success logs that include local port 21111. (...)	Generic	stable	network_device	-	Cisco IOS · Cisco	Initial Access Exploit Public-Facing Application Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Nasreddine Bencherchali	2026-05-19	2026-05-19	77a1751f-552f-456c-b9ae-cdb66eec3e42
Splunk	The following analytic detects Cisco IOS-XE configuration changes performed by the WebUI WSMA process.	Anomaly	stable	network_device	-	Cisco IOS · Cisco	Initial Access Exploit Public-Facing Application Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Nasreddine Bencherchali	2026-05-19	2026-09-08	f9686576-a23d-4c4d-bfad-a45499dc448a
	Detects LDP failures which may be indicative of brute force attacks to manipulate MPLS labels	Generic	test	-	-	LDAP · Cisco	Credential Access, Collection Adversary-in-the-Middle Credential Access Brute Force Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	low	Tim Brown	2023-01-09	—	50e606bf-04ce-4ca7-9d54-3449494bbd4b
Splunk	This analytic correlates risk events between privileged account creation on Cisco IOS devices and HTTP requests to privileged execution paths such as `/level/15/exec/-/*`. (...)	Correlation	stable	-	-	Cisco	Persistence Create Account Lateral Movement Remote Services SSH Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Nasreddine Bencherchali, Splunk	2026-01-12	2026-05-13	2c9d4f5a-8b6e-4c7f-9d8e-1a2b3c4d5e6f
Splunk	This analytic detects a correlation between privileged account creation on Cisco IOS devices and sub (...)	Correlation	stable	-	-	Cisco	Persistence Create Account Lateral Movement Remote Services SSH Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Nasreddine Bencherchali, Splunk	2026-01-12	2026-05-13	7f8e2b4c-9a3d-4e1f-8c5b-6d7e8f9a0b1c
Splunk	The following analytic detects a blocked connection event by identifying a "Block" value in the action field. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Reconnaissance Active Scanning Vulnerability Scanning Credential Access Brute Force Execution Exploitation for Client Execution Discovery Network Service Discovery Discovery Remote System Discovery	-	medium	Nasreddine Bencherchali, Splunk	2025-04-03	2026-05-13	17e9b764-3a2b-4d36-9751-32d13ce4718b
Splunk	This analytic identifies high-severity intrusion events based on the classification assigned to Snort rules within Cisco Secure Firewall logs. (...)	Generic	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Application Layer Protocol Initial Access Exploit Public-Facing Application Execution Exploitation for Client Execution Credential Access OS Credential Dumping Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Nasreddine Bencherchali, Splunk	2025-04-16	2026-05-13	ec99bb81-c31b-4837-8c7d-1b32aa70b337
Splunk	The following analytic detects repeated blocked connection attempts from the same initiator to the same responder within a short time window. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Reconnaissance Active Scanning Vulnerability Scanning Credential Access Brute Force Execution Exploitation for Client Execution Discovery Network Service Discovery Discovery Remote System Discovery	-	medium	Nasreddine Bencherchali, Splunk	2025-04-03	2026-05-13	1f57f10e-1dc5-47ea-852c-2e85b2503d79
Splunk	The following analytic detects cloud API calls executed by user roles that have not previously run these commands. (...)	Anomaly	stable	configuration_change	-	AWS CloudTrail · AWS	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	David Dorsey, Splunk	2020-10-27	2026-09-22	2181ad1f-1e73-4d0c-9780-e8880482a08f	-
Splunk	The following analytic detects cloud provisioning activities originating from previously unseen cities. (...)	Anomaly	stable	configuration_change	-	AWS CloudTrail · AWS	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Rico Valdez, Bhavin Patel, Splunk	2020-11-30	2026-09-22	e7ecc5e0-88df-48b9-91af-51104c68f02f	-
Splunk	The following analytic detects cloud provisioning activities originating from previously unseen countries. (...)	Anomaly	stable	configuration_change	-	AWS CloudTrail · AWS	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Rico Valdez, Bhavin Patel, Splunk	2020-12-01	2026-09-22	94994255-3acf-4213-9b3f-0494df03bb31	-
Splunk	The following analytic detects cloud provisioning activities originating from previously unseen IP addresses. (...)	Anomaly	stable	configuration_change	-	AWS CloudTrail · AWS	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Rico Valdez, Splunk	2020-11-30	2026-09-22	f86a8ec9-b042-45eb-92f4-e9ed1d781078	-
Splunk	The following analytic detects cloud provisioning activities originating from previously unseen regions. (...)	Anomaly	stable	configuration_change	-	AWS CloudTrail · AWS	Initial Access, Persistence, Privilege Escalation, Stealth Valid Accounts	-	medium	Rico Valdez, Bhavin Patel, Splunk	2020-10-26	2026-09-22	5aba1860-9617-4af9-b19d-aecac16fe4f2	-
Splunk	The following analytic detects the use of `cmd.exe /c` to execute commands, a technique often employed by adversaries and malware to run batch commands or invoke other shells like PowerShell. (...)	Hunting	stable	process_creation	windows	Sysmon · WinEventLog Security · CrowdStrike	Execution Command and Scripting Interpreter Windows Command Shell	CVE-2021-44228	medium	Teoderick Contreras, Bhavin Patel, Splunk	2021-10-21	2026-05-13	54a6ed00-3256-11ec-b031-acde48001122

Title

Description

Suckfly G0039

Suckfly MITRE reference G0039

Standing G0039

Reach

Coverage

Suckfly detections G0039