sality | 033056e2a4dc8e10c9ba7d7ec078376a565d02046bb632bcd6c3be336a92a36e

Windows Service

T1543.003

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

T1562.001

Modify Registry

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

Windows security bypass 2 TTPs 6 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

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

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1996-1-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-2-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-8-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-13-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-11-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-10-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-9-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-7-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-6-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-12-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-32-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-34-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx
behavioral1/memory/1996-33-0x0000000001F50000-0x0000000002FDE000-memory.dmp	upx

Windows security modification 2 TTPs 7 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

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

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

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

Enumerates connected drives 3 TTPs 23 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

description	ioc	Process
File opened (read-only)	\??\g:	aspweb.exe
File opened (read-only)	\??\k:	aspweb.exe
File opened (read-only)	\??\m:	aspweb.exe
File opened (read-only)	\??\r:	aspweb.exe
File opened (read-only)	\??\s:	aspweb.exe
File opened (read-only)	\??\t:	aspweb.exe
File opened (read-only)	\??\x:	aspweb.exe
File opened (read-only)	\??\v:	aspweb.exe
File opened (read-only)	\??\z:	aspweb.exe
File opened (read-only)	\??\a:	aspweb.exe
File opened (read-only)	\??\e:	aspweb.exe
File opened (read-only)	\??\j:	aspweb.exe
File opened (read-only)	\??\p:	aspweb.exe
File opened (read-only)	\??\q:	aspweb.exe
File opened (read-only)	\??\w:	aspweb.exe
File opened (read-only)	\??\y:	aspweb.exe
File opened (read-only)	\??\b:	aspweb.exe
File opened (read-only)	\??\h:	aspweb.exe
File opened (read-only)	\??\i:	aspweb.exe
File opened (read-only)	\??\l:	aspweb.exe
File opened (read-only)	\??\n:	aspweb.exe
File opened (read-only)	\??\o:	aspweb.exe
File opened (read-only)	\??\u:	aspweb.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	aspweb.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SYSTEM.INI	aspweb.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1996	aspweb.exe
1996	aspweb.exe
1996	aspweb.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe
Token: SeDebugPrivilege	1996	aspweb.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1996	aspweb.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1996	aspweb.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
1996	aspweb.exe
1996	aspweb.exe
1996	aspweb.exe
1996	aspweb.exe
1996	aspweb.exe
1996	aspweb.exe
1996	aspweb.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 1116	1996	aspweb.exe	19
PID 1996 wrote to memory of 1176	1996	aspweb.exe	20
PID 1996 wrote to memory of 1208	1996	aspweb.exe	21
PID 1996 wrote to memory of 1240	1996	aspweb.exe	23

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

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

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1208
- C:\Users\Admin\AppData\Local\Temp\aspweb.exe
  "C:\Users\Admin\AppData\Local\Temp\aspweb.exe"
  2⤵
  - Modifies firewall policy service
  - UAC bypass
  - Windows security bypass
  - Windows security modification
  - Checks whether UAC is enabled
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:1996

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Pre-OS Boot

T1542

Bootkit

T1542.003

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

3

T1562

Disable or Modify Tools

Modify Registry

Pre-OS Boot

T1542

Bootkit