PUA.Win32.FlyStudio.BG
PUP-XEY-CR. (McAfee); Trojan.Gen.2 (Symantec); Trojan.Win32.FlyStudio.dhc (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan:W32/DelfInject.R (FSecure)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan 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
Arrival Details
This Trojan 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 Trojan adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
Multimedia\DrawDib
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Multimedia\DrawDib
vga.drv 800x600x32(BGR 0) = "31,31,31,31"
Dropping Routine
This Trojan drops the following files:
- %User Temp%\SkinH_EL.dll
(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(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
This report is generated via an automated analysis system.
SOLUTION
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 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\Microsoft\Multimedia
- DrawDib
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\Microsoft\Multimedia\DrawDib
- vga.drv 800x600x32(BGR 0) = "31,31,31,31"
Step 4
Search and delete this file
- %User Temp%\SkinH_EL.dll
Step 5
Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.FlyStudio.BG. 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 the following Trend Micro Support pages for more information:
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