sality | 55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d

Windows Service

T1543.003

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

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

UAC bypass 3 TTPs 1 IoCs

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

Windows security bypass 2 TTPs 6 IoCs

Disable or Modify Tools

Modify Registry

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

UPX packed file 16 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1676-1-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-6-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-5-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-16-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-19-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-20-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-22-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-21-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-17-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-15-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-9-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-4-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-3-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-33-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-36-0x0000000002090000-0x000000000314A000-memory.dmp	upx
behavioral1/memory/1676-37-0x0000000002090000-0x000000000314A000-memory.dmp	upx

Windows security modification 2 TTPs 7 IoCs

Disable or Modify Tools

Modify Registry

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

Drops file in Windows directory 2 IoCs

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

description	ioc	process
File created	C:\Windows\f761d50	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
File opened for modification	C:\Windows\SYSTEM.INI	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

pid process

1676 55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

description	pid	process
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
Token: SeDebugPrivilege	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

pid	process
1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

description	pid	process	target process
PID 1676 wrote to memory of 1112	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe	taskhost.exe
PID 1676 wrote to memory of 1164	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe	Dwm.exe
PID 1676 wrote to memory of 1196	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe	Explorer.EXE
PID 1676 wrote to memory of 1652	1676	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe	DllHost.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

Processes:

55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1112

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1164

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1196

C:\Users\Admin\AppData\Local\Temp\55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.exe
"C:\Users\Admin\AppData\Local\Temp\55b33ad0a923455b500c7570e0782f7f6692c986075e0f5bd80e057dcdbd1c3d.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 SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1676

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1652

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Modify Registry

5

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

3

T1562

Disable or Modify Tools

3

Credential Access

Discovery

System Information Discovery