How to prevent from 3.3 DDoS malicious file

1. Introduction

After the first attack of "3.3 DDoS" on Mar 3, 2011, the rumor has that first destruction of HDD will appear on Mar 10.
The expectation was wrong and variant of 3.3 DDoS appeared 2 days later than its previous version emerged.
General user need to be careful from avoiding unwished HDD destruction.

2. How to prevent

User must boot his/her computer safe mode with networking for safety. And scan/treat PC with using anti-virus SW.

* When PC is turned "ON"

User must keep anti-virus SW latest version and scan PC or scan current version of anti-virus SW after unplugging LAN cable.

※ When PC is turned "ON"

Boot computer safe mode with networking with pressing "F8" after CMOS page.


* Screen of Windows XP

▼ Screen of Windows 7

In either cases of having no anti-virus SW or having not updated latest version, download file first and scan/treat.

[Download our anti-virus for DDoS]

* Screen for our anti-virus for DDoS


We recommend total scan for treating 3.3 DDoS related malicious files as following.

▼ Screen for diagnosis 3.3 DDoS related malicious file

This kind of DDoS related malicious file will damage HDD and unable to use PC normally.
Furthermore, a lot of user who use file hosting web sites may be infected by this malicious file.
To use PC safely from security threats of these malicious attachments, we recommend following "Security management tips" for general users.
* Security management tips

1. Maintain the latest security update on OS and applications
2. Use anti-virus SW from believable security company and keep updating the latest engine and using real time detecting function
3. Do not see and download attached file from suspicious e-mail.
4. Keep caution to link from instant messenger and SNS.

INCA Internet (Security Response Center / Emergency Response Team) provides diagnosis/treatment function with nProtect AVS and runs responding system against various security threats.


  1. A very good post ,I like it very much ,hope you will give another post asap Great info Thanks!

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