TROJ_KILLDISK.IUE
Trojan.Win32.KillDisk.fz (Kaspersky); Win32.Trojan.Killdisk.Swud (Tencent)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Dropped by other malware
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
626,520 bytes
EXE
No
26 May 2018
Drops files
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.
Installation
This Trojan adds the following folders:
- %User Temp%/ns{5 random characters}.tmp ← Deleted Afterwards
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It drops the following files:
- %User Temp%/ns{5 random characters}.tmp/System.dll ← Deleted Afterwards
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Other Details
This Trojan does the following:
- Wipes Master Boot Record Data
- It overwrites the portion of the physical drives with null values
- Performs Shutdown
SOLUTION
9.850
14.279.16
27 May 2018
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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Search and delete this folder
- %User Temp%/ns{5 random characters}.tmp
Step 4
Scan your computer with your Trend Micro product to delete files detected as TROJ_KILLDISK.IUE. 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:
NOTES:
Restore the system from backup or reinstall the operating system (OS).
Depending on the extent of the damage, and if the wiping of the MBR is unsuccessful, the system can be made bootable by doing a system repair using a Windows installer disk. If the Windows installer can still make the system boot up, recovery of the files will be futile as portions of the files were already corrupted.
Did this description help? Tell us how we did.