TSPY_KEYLOG.YYMI
RDN/Generic.dx!d2j (McAfee); HEUR:Trojan.Win32.Generic (Kaspersky); Mal/MsilKlog-D (Sophos); ILCrypt (AVG)
Windows
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
109,568 bytes
EXE
No
12 Jul 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.
Installation
This spyware creates the following folders:
- %System%\Application Services
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
Other System Modifications
This spyware adds the following registry keys:
HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
Microsoft\Sysinternals
It adds the following registry entries:
HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
Microsoft\Sysinternals
PROCID = "5650"
HKEY_CURRENT_USER\Software\Microsoft\
Windows NT\CurrentVersion\Winlogon
shell = "explorer.exe,{malware path and file name} "
Dropping Routine
This spyware drops the following files:
- %User Profile%\Application Data\msconfig.ini
(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.)
This report is generated via an automated analysis system.
SOLUTION
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
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\VB and VBA Program Settings\Microsoft
- Sysinternals
Step 3
Delete this registry value
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\VB and VBA Program Settings\Microsoft\Sysinternals
- PROCID = "5650"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon
- shell = "explorer.exe,{malware path and file name} "
Step 4
Search and delete this file
- %User Profile%\Application Data\msconfig.ini
Step 5
Search and delete this folder
- %System%\Application Services
Step 6
Scan your computer with your Trend Micro product to delete files detected as TSPY_KEYLOG.YYMI. 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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