sality | ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5

Modify Existing Service

T1031

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe

Sality
Sality is backdoor written in C++, first discovered in 2003.
backdoor sality

UAC bypass 3 TTPs 2 IoCs

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Au_.exe

Windows security bypass 2 TTPs 12 IoCs

Disabling Security Tools

T1089

Modify Registry

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe

Executes dropped EXE 1 IoCs

Processes:

Au_.exe

pid process

320 Au_.exe

pid	process
320	Au_.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2640-132-0x0000000002360000-0x00000000033EE000-memory.dmp	upx
behavioral2/memory/2640-138-0x0000000002360000-0x00000000033EE000-memory.dmp	upx
behavioral2/memory/320-141-0x0000000004360000-0x00000000053EE000-memory.dmp	upx
behavioral2/memory/320-144-0x0000000004360000-0x00000000053EE000-memory.dmp	upx
behavioral2/memory/320-145-0x0000000004360000-0x00000000053EE000-memory.dmp	upx

Loads dropped DLL 1 IoCs

Processes:

Au_.exe

pid process

320 Au_.exe

pid	process
320	Au_.exe

Windows security modification 2 TTPs 14 IoCs

Disabling Security Tools

T1089

Modify Registry

Processes:

Au_.exeac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	Au_.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	Au_.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	Au_.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Au_.exe

Enumerates connected drives 3 TTPs 19 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

T1082

Processes:

Au_.exe

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

Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media
T1091

Processes:

Au_.exe

description ioc process

File opened for modification C:\autorun.inf Au_.exe

description	ioc	process
File opened for modification	C:\autorun.inf	Au_.exe

Drops file in Program Files directory 11 IoCs

Processes:

Au_.exe

description	ioc	process
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\MavInject32.exe	Au_.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\OfficeC2RClient.exe	Au_.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\OfficeClickToRun.exe	Au_.exe
File opened for modification	C:\PROGRAM FILES\7-ZIP\7zG.exe	Au_.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\appvcleaner.exe	Au_.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\AppVShNotify.exe	Au_.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\InspectorOfficeGadget.exe	Au_.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\IntegratedOffice.exe	Au_.exe
File opened for modification	C:\PROGRAM FILES\7-ZIP\7z.exe	Au_.exe
File opened for modification	C:\PROGRAM FILES\7-ZIP\7zFM.exe	Au_.exe
File opened for modification	C:\PROGRAM FILES\7-ZIP\Uninstall.exe	Au_.exe

Drops file in Windows directory 1 IoCs

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe

description ioc process

File opened for modification C:\Windows\SYSTEM.INI ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\SYSTEM.INI	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

pid	process
2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe
320	Au_.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

description	pid	process
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe
Token: SeDebugPrivilege	320	Au_.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

description	pid	process	target process
PID 2640 wrote to memory of 776	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	fontdrvhost.exe
PID 2640 wrote to memory of 784	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	fontdrvhost.exe
PID 2640 wrote to memory of 1016	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	dwm.exe
PID 2640 wrote to memory of 320	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Au_.exe
PID 2640 wrote to memory of 320	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Au_.exe
PID 2640 wrote to memory of 320	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Au_.exe
PID 2640 wrote to memory of 2416	2640	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	sihost.exe
PID 320 wrote to memory of 776	320	Au_.exe	fontdrvhost.exe
PID 320 wrote to memory of 784	320	Au_.exe	fontdrvhost.exe
PID 320 wrote to memory of 1016	320	Au_.exe	dwm.exe
PID 320 wrote to memory of 2416	320	Au_.exe	sihost.exe
PID 320 wrote to memory of 2428	320	Au_.exe	svchost.exe
PID 320 wrote to memory of 2608	320	Au_.exe	taskhostw.exe
PID 320 wrote to memory of 2584	320	Au_.exe	Explorer.EXE
PID 320 wrote to memory of 2836	320	Au_.exe	svchost.exe
PID 320 wrote to memory of 3276	320	Au_.exe	DllHost.exe
PID 320 wrote to memory of 3384	320	Au_.exe	StartMenuExperienceHost.exe
PID 320 wrote to memory of 3452	320	Au_.exe	RuntimeBroker.exe
PID 320 wrote to memory of 3552	320	Au_.exe	SearchApp.exe
PID 320 wrote to memory of 3816	320	Au_.exe	RuntimeBroker.exe
PID 320 wrote to memory of 4164	320	Au_.exe	RuntimeBroker.exe
PID 320 wrote to memory of 1640	320	Au_.exe	backgroundTaskHost.exe
PID 320 wrote to memory of 776	320	Au_.exe	fontdrvhost.exe
PID 320 wrote to memory of 784	320	Au_.exe	fontdrvhost.exe
PID 320 wrote to memory of 1016	320	Au_.exe	dwm.exe
PID 320 wrote to memory of 2416	320	Au_.exe	sihost.exe
PID 320 wrote to memory of 2428	320	Au_.exe	svchost.exe
PID 320 wrote to memory of 2608	320	Au_.exe	taskhostw.exe
PID 320 wrote to memory of 2584	320	Au_.exe	Explorer.EXE
PID 320 wrote to memory of 2836	320	Au_.exe	svchost.exe
PID 320 wrote to memory of 3276	320	Au_.exe	DllHost.exe
PID 320 wrote to memory of 3384	320	Au_.exe	StartMenuExperienceHost.exe
PID 320 wrote to memory of 3452	320	Au_.exe	RuntimeBroker.exe
PID 320 wrote to memory of 3552	320	Au_.exe	SearchApp.exe
PID 320 wrote to memory of 3816	320	Au_.exe	RuntimeBroker.exe
PID 320 wrote to memory of 4164	320	Au_.exe	RuntimeBroker.exe
PID 320 wrote to memory of 1640	320	Au_.exe	backgroundTaskHost.exe
PID 320 wrote to memory of 776	320	Au_.exe	fontdrvhost.exe
PID 320 wrote to memory of 784	320	Au_.exe	fontdrvhost.exe
PID 320 wrote to memory of 1016	320	Au_.exe	dwm.exe
PID 320 wrote to memory of 2416	320	Au_.exe	sihost.exe
PID 320 wrote to memory of 2428	320	Au_.exe	svchost.exe
PID 320 wrote to memory of 2608	320	Au_.exe	taskhostw.exe
PID 320 wrote to memory of 2584	320	Au_.exe	Explorer.EXE
PID 320 wrote to memory of 2836	320	Au_.exe	svchost.exe
PID 320 wrote to memory of 3276	320	Au_.exe	DllHost.exe
PID 320 wrote to memory of 3384	320	Au_.exe	StartMenuExperienceHost.exe
PID 320 wrote to memory of 3452	320	Au_.exe	RuntimeBroker.exe
PID 320 wrote to memory of 3552	320	Au_.exe	SearchApp.exe
PID 320 wrote to memory of 3816	320	Au_.exe	RuntimeBroker.exe
PID 320 wrote to memory of 4164	320	Au_.exe	RuntimeBroker.exe
PID 320 wrote to memory of 1640	320	Au_.exe	backgroundTaskHost.exe
PID 320 wrote to memory of 776	320	Au_.exe	fontdrvhost.exe
PID 320 wrote to memory of 784	320	Au_.exe	fontdrvhost.exe
PID 320 wrote to memory of 1016	320	Au_.exe	dwm.exe
PID 320 wrote to memory of 2416	320	Au_.exe	sihost.exe
PID 320 wrote to memory of 2428	320	Au_.exe	svchost.exe
PID 320 wrote to memory of 2608	320	Au_.exe	taskhostw.exe
PID 320 wrote to memory of 2584	320	Au_.exe	Explorer.EXE
PID 320 wrote to memory of 2836	320	Au_.exe	svchost.exe
PID 320 wrote to memory of 3276	320	Au_.exe	DllHost.exe
PID 320 wrote to memory of 3384	320	Au_.exe	StartMenuExperienceHost.exe
PID 320 wrote to memory of 3452	320	Au_.exe	RuntimeBroker.exe
PID 320 wrote to memory of 3552	320	Au_.exe	SearchApp.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Au_.exe

C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
1⤵
PID:776

C:\Windows\system32\dwm.exe
"dwm.exe"
1⤵
PID:1016

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:1640

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4164

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3816

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:3552

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3452

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3384

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3276

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:2836

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2584

C:\Users\Admin\AppData\Local\Temp\ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
"C:\Users\Admin\AppData\Local\Temp\ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe"
2⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2640

C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
"C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
3⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Executes dropped EXE
- Loads dropped DLL
- Windows security modification
- Checks whether UAC is enabled
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:320

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2608

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2428

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2416

C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
1⤵
PID:784

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3700

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:5056

C:\Windows\system32\BackgroundTransferHost.exe
"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
1⤵
PID:1144

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:2800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Replication Through Removable Media