TSPY_ONLINEG.SMA

October 11, 2012
 ALIASES:

TrojanDropper:Win32/Lolyda.F (Microsoft); [3.nsis]:Generic-CTG.a !! (McAfee); Infostealer.Gampass (Symantec); ARC:NSIS, PAK:[MiNi.exe]:Armadillo, PAK:[3.exe]:UPX (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This spyware 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:

1,513,934 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

11 Oct 2012

Arrival Details

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

Other System Modifications

This spyware deletes the following files:

  • %User Temp%\nsg1.tmp

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)

It adds the following registry keys:

HKEY_LOCAL_MACHINE\Software\Licenses

HKEY_CLASSES_ROOT\CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}\Implemented Categories

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}\Implemented Categories\
{7DD95801-9882-11CF-9FA9-00AA006C42C4}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}\Implemented Categories\
{7DD95802-9882-11CF-9FA9-00AA006C42C4}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}\InProcServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}\ProgID

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Licenses
{K7C0DB872A3F777C0} = "{random values}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}\InProcServer32
ThreadingModel = "Both"

HKEY_LOCAL_MACHINE\SOFTWARE\Licenses
{I8DCCF0DD89E75F8E} = "{random values}"

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
RFC1156Agent\CurrentVersion\Parameters
TrapPollTimeMilliSecs = "3a98"

(Note: The default value data of the said registry entry is 3a98.)

It deletes the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}\Version

Dropping Routine

This spyware drops the following files:

  • %System Root%\MiNi.exe
  • %System Root%\3.exe
  • %User Temp%\2BFAA2B2.TMP

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.200

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\Software
    • Licenses
  • In HKEY_CLASSES_ROOT\CLSID
    • {D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}
    • Implemented Categories
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}\Implemented Categories
    • {7DD95801-9882-11CF-9FA9-00AA006C42C4}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}\Implemented Categories
    • {7DD95802-9882-11CF-9FA9-00AA006C42C4}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}
    • InProcServer32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}
    • ProgID

Step 3

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\Licenses
    • {K7C0DB872A3F777C0} = "{random values}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}\InProcServer32
    • ThreadingModel = "Both"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Licenses
    • {I8DCCF0DD89E75F8E} = "{random values}"

Step 4

Restore this modified registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\RFC1156Agent\CurrentVersion\Parameters
    • From: TrapPollTimeMilliSecs = "3a98"
      To: TrapPollTimeMilliSecs = ""3a98""

Step 5

Search and delete these files

[ Learn More ]
There may be some component files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %System Root%\MiNi.exe
  • %System Root%\3.exe
  • %User Temp%\2BFAA2B2.TMP

Step 6

Scan your computer with your Trend Micro product to delete files detected as TSPY_ONLINEG.SMA. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.

Step 7

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

  • %User Temp%\nsg1.tmp

Step 8

Restore these deleted registry keys/values from backup

*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D8BE6B9F-6708-5A3C-43F1-847CD2BBC10E}
    • Version


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