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This destructive malware causes massive data loss.
To get a one-glance comprehensive view of the behavior of this Trojan, refer to the Threat Diagram shown below.
For the related story, you may read the blog post Unsophisticated Wiper Malware Makes Headlines
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.
This Trojan drops the following file(s)/component(s):
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
It drops the following non-malicious files:
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Runjucheck.exe = "%System%\jucheck.exe"
This malware checks for the current date and deletes desktop files and all of the files found on drives D to I when it runs on dates found within the following range:
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Identify and terminate files detected as TROJ_BATWIPER.A
To terminate the malware/grayware/spyware process:
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.
To delete the registry value this malware created:
Search and delete this file
To manually delete a malware/grayware file from an affected system:
• For Windows 2000, Windows XP, and Windows Server 2003:
• For Windows Vista and Windows 7 users:
Scan your computer with your Trend Micro product to delete files detected as TROJ_BATWIPER.A. 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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