PLATFORM:

Windows

 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: 216,576 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 01 Nov 2016

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 adds the following registry keys:

HKEY_CURRENT_USER\CLSID\{BCDE0395-E52F-467C-8E3D-C4579291692E}\
InprocServer32

HKEY_USERS\S-1-5-19_Classes\Software\
Microsoft\MediaPlayer\{89CD0B54-C1E1-4298-881E-4613085E3B6B}\
lnk

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
MediaPlayer\{89CD0B54-C1E1-4298-881E-4613085E3B6B}\lnk
2111 = "{random values}"

Dropping Routine

This spyware drops the following files:

  • %User Profile%\Application Data\syslib.dll

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)

Other Details

This spyware connects to the following possibly malicious URL:

  • http://{BLOCKED}oftsupp.comopen/?{random characters}
  • http://{BLOCKED}oftsupp.comclose/?{random characters}
  • http://{BLOCKED}oftsupp.comresults/?{random characters}
  • http://{BLOCKED}oftsupp.comwatch/?{random characters}
  • 31.220.43.99

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine: 9.8

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

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_CURRENT_USER\CLSID\{BCDE0395-E52F-467C-8E3D-C4579291692E}
    • InprocServer32
  • In HKEY_USERS\S-1-5-19_Classes\Software\Microsoft\MediaPlayer\{89CD0B54-C1E1-4298-881E-4613085E3B6B}
    • lnk

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_CURRENT_USER\Software\Microsoft\MediaPlayer\{89CD0B54-C1E1-4298-881E-4613085E3B6B}\lnk
    • 2111 = "{random values}"

Step 4

Search and delete this file

[ Learn More ]
There may be some 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.
  • %User Profile%\Application Data\syslib.dll

Step 5

Scan your computer with your Trend Micro product to delete files detected as TSPY_SEDNIT.E. 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.


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