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TSPY_URSNIF.YNV

December 06, 2014
 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File Size:

779264 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

27 Nov 2014

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan drops and executes the following files:

  • %Application Data%\SoftwareProtectionPlatform\sppc.exe
  • %System%\sppsrv.exe

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

It creates the following folders:

  • %Application Data%\SoftwareProtectionPlatform

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Other System Modifications

This Trojan adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
dumpdsvr = "%Application Data%\SoftwareProtectionPlatform\sppc.exe"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sppsrv
Type = 10

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sppsrv
Start = 2

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sppsrv
ErrorControl = 1

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sppsrv
ImagePath = "%System%\sppsrv.exe -s"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sppsrv
DisplayName = "Windows Software Protection"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sppsrv
DependOnService = RPCSS

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sppsrv
DependOnGroup = 0

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sppsrv
ObjectName = LocalSystem

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\sppsrv
Description = "This Windows service enables the download, installation and enforcement of digital licenses for Windows and Windows applications. If the service is disabled, the operating system and licensed applications may run in a notification mode. It is strongly recommended that you not disable the Software Protection service."

Mobile Malware Routine

This Trojan accesses the following possibly malicious URL(s):

  • http://{BLOCKED}ih.com/pki/mscorp/crl/msitwww2.crl