ALIASES:

Trojan.Gen (Symantec); Trojan.Win32.Generic!BT (Sunbelt)

 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: 1,022,464 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 12 May 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 adds the following registry keys:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\
CTF\TIP

HKEY_CURRENT_USER\Software\Microsoft\
Speech

HKEY_CURRENT_USER\SOFTWARE\Microsoft\
CTF\Assemblies

HKEY_CURRENT_USER\Software\Microsoft\
SAPI Layer

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
CTF\LangBar
ExtraIconsOnMinimized = "1"

It modifies the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
ctfmon.exe = "%System%\ctfmon.exe"

(Note: The default value data of the said registry entry is %Windows%\system32\ctfmon.exe.)

HKEY_CURRENT_USER\Software\Microsoft\
CTF\Sapilayr
ProfileInitialized = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\Software\Microsoft\
CTF\TIP\{DCBD6FA8-032F-11D3-B5B1-00C04FC324A1}\
LanguageProfile\0x00000409\{09EA4E4B-46CE-4469-B450-0DE76A435BBB}
Enable = "0"

(Note: The default value data of the said registry entry is 1.)

Dropping Routine

This spyware drops the following files:

  • winlogon.exe

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\Microsoft\CTF
    • TIP
  • In HKEY_CURRENT_USER\Software\Microsoft
    • Speech
  • In HKEY_CURRENT_USER\SOFTWARE\Microsoft\CTF
    • Assemblies
  • In HKEY_CURRENT_USER\Software\Microsoft
    • SAPI Layer

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\CTF\LangBar
    • ExtraIconsOnMinimized = "1"

Step 4

Restore these modified registry values

[ Learn More ]

Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • From: ctfmon.exe = "%System%\ctfmon.exe"
      To: ctfmon.exe = ""%Windows%\system32\ctfmon.exe""
  • In HKEY_CURRENT_USER\Software\Microsoft\CTF\Sapilayr
    • From: ProfileInitialized = "1"
      To: ProfileInitialized = ""1""
  • In HKEY_CURRENT_USER\Software\Microsoft\CTF\TIP\{DCBD6FA8-032F-11D3-B5B1-00C04FC324A1}\LanguageProfile\0x00000409\{09EA4E4B-46CE-4469-B450-0DE76A435BBB}
    • From: Enable = "0"
      To: Enable = ""1""

Step 5

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.
  • winlogon.exe

Step 6

Scan your computer with your Trend Micro product to delete files detected as TSPY_ONLINEG.XLA. 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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