sality | b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f

Modify Existing Service

T1031

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe

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

UAC bypass 3 TTPs 1 IoCs

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe

Windows security bypass 2 TTPs 6 IoCs

Disabling Security Tools

T1089

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1644-55-0x0000000002150000-0x00000000031DE000-memory.dmp	upx
behavioral1/memory/1644-58-0x0000000002150000-0x00000000031DE000-memory.dmp	upx
behavioral1/memory/1644-61-0x0000000002150000-0x00000000031DE000-memory.dmp	upx

Windows security modification 2 TTPs 7 IoCs

Disabling Security Tools

T1089

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.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"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe

Enumerates connected drives 3 TTPs 4 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)	\??\F:	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
File opened (read-only)	\??\G:	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
File opened (read-only)	\??\H:	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
File opened (read-only)	\??\E:	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.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

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SYSTEM.INI	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

description	pid	Process
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
Token: SeDebugPrivilege	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 1116	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe	16
PID 1644 wrote to memory of 1184	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe	21
PID 1644 wrote to memory of 1220	1644	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe	19

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"	b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1220
- C:\Users\Admin\AppData\Local\Temp\b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.exe
  "C:\Users\Admin\AppData\Local\Temp\b9c07a95c693fb2c88f422d4d3d406c4d4fc090d0a513b4226b36f51ea8e3b7f.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 WriteProcessMemory
  - System policy modification
  PID:1644

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1184

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Modify Existing Service

T1031

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control