TSPY_FAREIT.YYSJE


 ALIASES:

Trojan:Win32/Ramnit (Microsoft); RDN/Generic.cf!a (McAfee); W32.Ramnit (Symantec); Trojan-PSW.Win32.Fareit.ayjg (Kaspersky); Mal/MSIL-OM (Sophos); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse MSIL8.LJI (AVG)

 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:

445,952 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

03 Jun 2015

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:

  • {malware path and file name}:zone.identifier

It adds the following registry keys:

HKEY_CURRENT_USER\Software\WinRAR

It adds the following registry entries:

HKEY_CURRENT_USER\Software\WinRAR
HWID = "{random values}"

HKEY_CURRENT_USER\Software\WinRAR
Client Hash = "{random values}"

Dropping Routine

This spyware drops the following files:

  • %Windows%\Microsoft.NET\Framework\v2.0.50727\vbcmgr.exe

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

Other Details

This spyware connects to the following possibly malicious URL:

  • {BLOCKED}0.16.140
  • {BLOCKED}.210.155
  • {BLOCKED}8.42.36
  • {BLOCKED}.197.203
  • {BLOCKED}252.44
  • {BLOCKED}243.216
  • {BLOCKED}133.218
  • {BLOCKED}108.11
  • {BLOCKED}6.81.24
  • {BLOCKED}187.107

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.750

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\Software
    • WinRAR

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\WinRAR
    • HWID = "{random values}"
  • In HKEY_CURRENT_USER\Software\WinRAR
    • Client Hash = "{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.
  • %Windows%\Microsoft.NET\Framework\v2.0.50727\vbcmgr.exe

Step 5

Scan your computer with your Trend Micro product to delete files detected as TSPY_FAREIT.YYSJE. 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 6

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.

  • {malware path and file name}:zone.identifier


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