xmrig | 189e73cd52a34bf959c5d6de6dfda268f1bde4ec2473ff5d77cfe128d2dc2c09

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	jchnw.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	jchnw.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\jchnw.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\jchnw.exe:*:Enabled:ipsec"	jchnw.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\e5aaab2\RuntimeBroker.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e5aaab2\\RuntimeBroker.exe:*:Enabled:ipsec"	jchnw.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	CH341PAR.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	jchnw.exe

UAC bypass 3 TTPs 1 IoCs

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	CH341PAR.exe

Windows security bypass 2 TTPs 6 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	CH341PAR.exe

XMRig Miner payload 1 IoCs

miner

resource	yara_rule
behavioral19/files/0x000300000001690a-117.dat	xmrig

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\drivers\mqrlji.sys	CH341PAR.exe
File created	C:\Windows\SysWOW64\drivers\mqrlji.sys	CH341PAR.exe

Executes dropped EXE 3 IoCs

pid	Process
1668	jchnw.exe
4176	svcd.exe
4376	RuntimeBroker.exe

Windows security modification 2 TTPs 7 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	CH341PAR.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	CH341PAR.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	CH341PAR.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	CH341PAR.exe

Enumerates connected drives 3 TTPs 21 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
File opened (read-only)	\??\G:	CH341PAR.exe
File opened (read-only)	\??\T:	CH341PAR.exe
File opened (read-only)	\??\X:	CH341PAR.exe
File opened (read-only)	\??\E:	CH341PAR.exe
File opened (read-only)	\??\S:	CH341PAR.exe
File opened (read-only)	\??\U:	CH341PAR.exe
File opened (read-only)	\??\V:	CH341PAR.exe
File opened (read-only)	\??\Y:	CH341PAR.exe
File opened (read-only)	\??\H:	CH341PAR.exe
File opened (read-only)	\??\I:	CH341PAR.exe
File opened (read-only)	\??\J:	CH341PAR.exe
File opened (read-only)	\??\K:	CH341PAR.exe
File opened (read-only)	\??\O:	CH341PAR.exe
File opened (read-only)	\??\P:	CH341PAR.exe
File opened (read-only)	\??\Q:	CH341PAR.exe
File opened (read-only)	\??\L:	CH341PAR.exe
File opened (read-only)	\??\M:	CH341PAR.exe
File opened (read-only)	\??\N:	CH341PAR.exe
File opened (read-only)	\??\R:	CH341PAR.exe
File opened (read-only)	\??\W:	CH341PAR.exe
File opened (read-only)	\??\Z:	CH341PAR.exe

UPX packed file 54 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral19/memory/4148-1-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-2-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-3-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-4-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-13-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-18-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-16-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-17-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-12-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-14-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-15-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-10-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-11-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-19-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-20-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-21-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-22-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-23-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-26-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-28-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-29-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-31-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-32-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-34-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-37-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-39-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-40-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-41-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-42-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-43-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-45-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-46-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-47-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-48-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-49-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-51-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-53-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-55-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-58-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-60-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-62-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-63-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-65-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-66-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-68-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-69-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-70-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-71-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-72-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/files/0x0003000000000727-84.dat	upx
behavioral19/memory/1668-85-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral19/memory/4148-87-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/4148-88-0x0000000002420000-0x00000000034E4000-memory.dmp	upx
behavioral19/memory/1668-94-0x0000000000400000-0x0000000000425000-memory.dmp	upx

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe	CH341PAR.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	CH341PAR.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	CH341PAR.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	CH341PAR.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe	CH341PAR.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\MavInject32.exe	CH341PAR.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe	CH341PAR.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	CH341PAR.exe
File opened for modification	C:\Program Files\7-Zip\Uninstall.exe	CH341PAR.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe	CH341PAR.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\InspectorOfficeGadget.exe	CH341PAR.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe	CH341PAR.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\e587b74	CH341PAR.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svcd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CH341PAR.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jchnw.exe

Checks processor information in registry 2 TTPs 17 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\4	jchnw.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\8	jchnw.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	jchnw.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\3\ProcessorNameString	jchnw.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\6	jchnw.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\5\ProcessorNameString	jchnw.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\7	jchnw.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\7\ProcessorNameString	jchnw.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	jchnw.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\3	jchnw.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\4\ProcessorNameString	jchnw.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\5	jchnw.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\6\ProcessorNameString	jchnw.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	jchnw.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	jchnw.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2	jchnw.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2\ProcessorNameString	jchnw.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe
4148	CH341PAR.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
660	Process not Found
660	Process not Found

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe
Token: SeDebugPrivilege	4148	CH341PAR.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4148 wrote to memory of 792	4148	CH341PAR.exe	8
PID 4148 wrote to memory of 796	4148	CH341PAR.exe	9
PID 4148 wrote to memory of 512	4148	CH341PAR.exe	14
PID 4148 wrote to memory of 2360	4148	CH341PAR.exe	51
PID 4148 wrote to memory of 2760	4148	CH341PAR.exe	52
PID 4148 wrote to memory of 776	4148	CH341PAR.exe	53
PID 4148 wrote to memory of 3244	4148	CH341PAR.exe	55
PID 4148 wrote to memory of 3424	4148	CH341PAR.exe	57
PID 4148 wrote to memory of 3612	4148	CH341PAR.exe	58
PID 4148 wrote to memory of 3700	4148	CH341PAR.exe	59
PID 4148 wrote to memory of 3764	4148	CH341PAR.exe	60
PID 4148 wrote to memory of 3852	4148	CH341PAR.exe	61
PID 4148 wrote to memory of 4008	4148	CH341PAR.exe	62
PID 4148 wrote to memory of 4520	4148	CH341PAR.exe	65
PID 4148 wrote to memory of 3588	4148	CH341PAR.exe	76
PID 4148 wrote to memory of 792	4148	CH341PAR.exe	8
PID 4148 wrote to memory of 796	4148	CH341PAR.exe	9
PID 4148 wrote to memory of 512	4148	CH341PAR.exe	14
PID 4148 wrote to memory of 2360	4148	CH341PAR.exe	51
PID 4148 wrote to memory of 2760	4148	CH341PAR.exe	52
PID 4148 wrote to memory of 776	4148	CH341PAR.exe	53
PID 4148 wrote to memory of 3244	4148	CH341PAR.exe	55
PID 4148 wrote to memory of 3424	4148	CH341PAR.exe	57
PID 4148 wrote to memory of 3612	4148	CH341PAR.exe	58
PID 4148 wrote to memory of 3700	4148	CH341PAR.exe	59
PID 4148 wrote to memory of 3764	4148	CH341PAR.exe	60
PID 4148 wrote to memory of 3852	4148	CH341PAR.exe	61
PID 4148 wrote to memory of 4008	4148	CH341PAR.exe	62
PID 4148 wrote to memory of 4520	4148	CH341PAR.exe	65
PID 4148 wrote to memory of 3588	4148	CH341PAR.exe	76
PID 4148 wrote to memory of 792	4148	CH341PAR.exe	8
PID 4148 wrote to memory of 796	4148	CH341PAR.exe	9
PID 4148 wrote to memory of 512	4148	CH341PAR.exe	14
PID 4148 wrote to memory of 2360	4148	CH341PAR.exe	51
PID 4148 wrote to memory of 2760	4148	CH341PAR.exe	52
PID 4148 wrote to memory of 776	4148	CH341PAR.exe	53
PID 4148 wrote to memory of 3244	4148	CH341PAR.exe	55
PID 4148 wrote to memory of 3424	4148	CH341PAR.exe	57
PID 4148 wrote to memory of 3612	4148	CH341PAR.exe	58
PID 4148 wrote to memory of 3700	4148	CH341PAR.exe	59
PID 4148 wrote to memory of 3764	4148	CH341PAR.exe	60
PID 4148 wrote to memory of 3852	4148	CH341PAR.exe	61
PID 4148 wrote to memory of 4008	4148	CH341PAR.exe	62
PID 4148 wrote to memory of 4520	4148	CH341PAR.exe	65
PID 4148 wrote to memory of 3588	4148	CH341PAR.exe	76
PID 4148 wrote to memory of 792	4148	CH341PAR.exe	8
PID 4148 wrote to memory of 796	4148	CH341PAR.exe	9
PID 4148 wrote to memory of 512	4148	CH341PAR.exe	14
PID 4148 wrote to memory of 2360	4148	CH341PAR.exe	51
PID 4148 wrote to memory of 2760	4148	CH341PAR.exe	52
PID 4148 wrote to memory of 776	4148	CH341PAR.exe	53
PID 4148 wrote to memory of 3244	4148	CH341PAR.exe	55
PID 4148 wrote to memory of 3424	4148	CH341PAR.exe	57
PID 4148 wrote to memory of 3612	4148	CH341PAR.exe	58
PID 4148 wrote to memory of 3700	4148	CH341PAR.exe	59
PID 4148 wrote to memory of 3764	4148	CH341PAR.exe	60
PID 4148 wrote to memory of 3852	4148	CH341PAR.exe	61
PID 4148 wrote to memory of 4008	4148	CH341PAR.exe	62
PID 4148 wrote to memory of 4520	4148	CH341PAR.exe	65
PID 4148 wrote to memory of 3588	4148	CH341PAR.exe	76
PID 4148 wrote to memory of 792	4148	CH341PAR.exe	8
PID 4148 wrote to memory of 796	4148	CH341PAR.exe	9
PID 4148 wrote to memory of 512	4148	CH341PAR.exe	14
PID 4148 wrote to memory of 2360	4148	CH341PAR.exe	51

System policy modification 1 TTPs 1 IoCs

defense_evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	CH341PAR.exe

C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
1⤵
PID:792

C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
1⤵
PID:796

C:\Windows\system32\dwm.exe
"dwm.exe"
1⤵
PID:512

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2360

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2760

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:776

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3244
- C:\Users\Admin\AppData\Local\Temp\usb driver CH341\usb driver CH341\USB DRIVER2\DRIVER\Windows签名驱动，支持win7（首选）\CH341PAR.exe
  "C:\Users\Admin\AppData\Local\Temp\usb driver CH341\usb driver CH341\USB DRIVER2\DRIVER\Windows签名驱动，支持win7（首选）\CH341PAR.exe"
  2⤵
  - Modifies firewall policy service
  - UAC bypass
  - Windows security bypass
  - Drops file in Drivers directory
  - Windows security modification
  - Checks whether UAC is enabled
  - Enumerates connected drives
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:4148
- - C:\Users\Admin\AppData\Local\Temp\jchnw.exe
    C:\Users\Admin\AppData\Local\Temp\jchnw.exe
    3⤵
    - Modifies firewall policy service
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    PID:1668
  - - C:\Users\Admin\AppData\Local\Temp\e5aaab2\svcd.exe
      "C:\Users\Admin\AppData\Local\Temp\e5aaab2\svcd.exe" -s, -s1, -s2
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:4176
  - - C:\Users\Admin\AppData\Local\Temp\e5aaab2\RuntimeBroker.exe
      "C:\Users\Admin\AppData\Local\Temp\e5aaab2\RuntimeBroker.exe"
      4⤵
      Executes dropped EXE
      PID:4376
    - - C:\Windows\System32\Conhost.exe
        
        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
        5⤵
        
        PID:2256

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3424

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3612

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3700

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3764

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:3852

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4008

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4520

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
1⤵
PID:3588

C:\Windows\system32\drivers\ipfltdrv.sys
C:\Windows\system32\drivers\ipfltdrv.sys
1⤵
PID:1084

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery