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This worm may be unknowingly downloaded by a user while visiting malicious websites.
It drops an AUTORUN.INF file to automatically execute the copies it drops when a user accesses the drives of an affected system.
It may be downloaded from the following remote sites:
This worm drops the following non-malicious file:
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
Other System Modifications
This worm adds the following registry keys as part of its installation routine:
This worm drops the following copy of itself in all physical and removable drives:
The said .INF file contains the following strings:
Based on analysis of the codes, it has the following capabilities:
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Terminate a process file/s detected as WORM_AUTORUN.FJK
*Note: If the detected file/s is/are not displayed in theWindows Task Manager, continue doing the next steps.
To terminate the malware/grayware process:
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. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.
To delete the registry key this malware/grayware/spyware created:
Search and delete AUTORUN.INF files created by WORM_AUTORUN.FJK that contain these strings
(Note: This malware uses a file named BOOT.INF instead of AUTORUN.INF.)
To identify and delete AUTORUN.INF files created:
Search and delete this file
To delete the malware/grayware/spyware file:
Scan your computer with your Trend Micro product to delete files detected as WORM_AUTORUN.FJK. 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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