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

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

Modify Registry

Processes:

Au_.exeac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe

description	ioc	process
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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	Au_.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\UacDisableNotify = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.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\AntiVirusDisableNotify = "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\FirewallDisableNotify = "1"	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	Au_.exe

Executes dropped EXE 1 IoCs

Processes:

Au_.exe

pid process

1168 Au_.exe

pid	process
1168	Au_.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/952-55-0x0000000001E00000-0x0000000002E8E000-memory.dmp	upx
behavioral1/memory/952-58-0x0000000001E00000-0x0000000002E8E000-memory.dmp	upx
behavioral1/memory/1168-66-0x00000000027A0000-0x000000000382E000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

Au_.exe

pid process

1168 Au_.exe
Loads dropped DLL 2 IoCs

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

pid process

952 ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
1168 Au_.exe

pid	process
1168	Au_.exe

Windows security modification 2 TTPs 14 IoCs

Disabling Security Tools

Modify Registry

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

description	ioc	process
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\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\FirewallOverride = "1"	Au_.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\FirewallDisableNotify = "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\AntiVirusDisableNotify = "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\FirewallOverride = "1"	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

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 22 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)	\??\K:	Au_.exe
File opened (read-only)	\??\Q:	Au_.exe
File opened (read-only)	\??\W:	Au_.exe
File opened (read-only)	\??\L:	Au_.exe
File opened (read-only)	\??\M:	Au_.exe
File opened (read-only)	\??\O:	Au_.exe
File opened (read-only)	\??\R:	Au_.exe
File opened (read-only)	\??\S:	Au_.exe
File opened (read-only)	\??\E:	Au_.exe
File opened (read-only)	\??\G:	Au_.exe
File opened (read-only)	\??\J:	Au_.exe
File opened (read-only)	\??\X:	Au_.exe
File opened (read-only)	\??\Y:	Au_.exe
File opened (read-only)	\??\U:	Au_.exe
File opened (read-only)	\??\F:	Au_.exe
File opened (read-only)	\??\H:	Au_.exe
File opened (read-only)	\??\P:	Au_.exe
File opened (read-only)	\??\V:	Au_.exe
File opened (read-only)	\??\Z:	Au_.exe
File opened (read-only)	\??\I:	Au_.exe
File opened (read-only)	\??\N:	Au_.exe
File opened (read-only)	\??\T:	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
Drops file in Program Files directory 1 IoCs

Processes:

Au_.exe

description ioc process

File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.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:\autorun.inf	Au_.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	Au_.exe

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

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

pid	process
952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe
1168	Au_.exe

Suspicious use of AdjustPrivilegeToken 42 IoCs

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

description	pid	process
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe
Token: SeDebugPrivilege	1168	Au_.exe

Suspicious use of WriteProcessMemory 49 IoCs

Processes:

ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exeAu_.exe

description	pid	process	target process
PID 952 wrote to memory of 1120	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	taskhost.exe
PID 952 wrote to memory of 1176	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Dwm.exe
PID 952 wrote to memory of 1204	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Explorer.EXE
PID 952 wrote to memory of 1168	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Au_.exe
PID 952 wrote to memory of 1168	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Au_.exe
PID 952 wrote to memory of 1168	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Au_.exe
PID 952 wrote to memory of 1168	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Au_.exe
PID 952 wrote to memory of 1168	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Au_.exe
PID 952 wrote to memory of 1168	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Au_.exe
PID 952 wrote to memory of 1168	952	ac9897327901b6e866e307b059e605ac856e105c55b7cd8db48511c66bfc5ae5.exe	Au_.exe
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.EXE
PID 1168 wrote to memory of 1120	1168	Au_.exe	taskhost.exe
PID 1168 wrote to memory of 1176	1168	Au_.exe	Dwm.exe
PID 1168 wrote to memory of 1204	1168	Au_.exe	Explorer.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\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1204

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
- Loads dropped DLL
- 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:952

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
- Deletes itself
- 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:1168

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1176

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1120

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Modify Registry

5

Bypass User Account Control

T1088

Disabling Security Tools

3

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

T1012

Peripheral Device Discovery

T1120

Lateral Movement

Replication Through Removable Media