7 min read

USB Immunizer

Bitdefender

March 03, 2011

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USB Immunizer

For years, Autorun-based malware has been atop of the worldwide e-threat landscape, with notorious representatives such as Trojan.AutorunInf, the Conficker worm (Win32.Worm.Downadup) or Worm.Autorun.VHD.

Introduced back in the Windows XP era to facilitate software installations from CD-ROM media for non-technical computer users, the Autorun feature has rapidly become the infection vector of choice for cyber-criminals.

The USB immunizer is Bitdefender’s response to this growing issue.

It disables autorun-related threats before they access the computer. Once installed, it constantly watches for newly inserted USB storage devices and immunizes them on the fly. If you accidentally plug in an infected USB drive that has not been immunized, the computer will not auto-execute the piece of malware located on the USB storage device.

Frequently Asked Questions

[mks_accordion]

[mks_accordion_item title=”Q: Can I use an immunized USB drive with a portable application launcher?”]A: Yes, you can, as long as you don’t want the launcher to automatically start when the USB drive is plugged in.[/mks_accordion_item]

[mks_accordion_item title=”Q: Why am I unable to delete the autorun.inf file the Immunizer has created on my drive?”]A: The file is applied special permissions, depending on the file system of your storage device. These special permissions prevent the user or malware from altering the autorun.inf file.[/mks_accordion_item]

[mks_accordion_item title=”Q: OK, I need my drive back or I need to create an autorun.inf file. How do I remove the autorun.inf file you have created?”]A: You can’t delete the file on a Windows-based PC. Instead, we suggest that you boot from a Linux Live CD or use a Mac OS X system to simply delete the file.[/mks_accordion_item]

[mks_accordion_item title=”Q: What file systems can this tool create the autorun.inf file on?”] A: The application currently supports NTFS, FAT32, and FAT file systems.[/mks_accordion_item]

[mks_accordion_item title=”Q: The USB Immunizer shows me an error. What exactly is going on?”] A: Sometimes, the application may encounter errors; these errors are logged in a file created next to your application. If such an incident occurs, please make sure that you’re submitting the file to immunizer@bitdefender.com and we’ll work things out for you.[/mks_accordion_item]

[mks_accordion_item title=”Q: Why are some external hard-disk drives not showing up in Immunizer? Is there something wrong with them?”] A: Depending on the hardware, some disk drives actually report that they are fixed disks. BitDefender USB Immunizer only lists removable media, as they are most prone to autorun.inf infections.[/mks_accordion_item]

[mks_accordion_item title=”Q: What languages is the USB Immunizer available in?”]A: The USB immunizer has been translated into English, Spanish, Portuguese, Arabic, Thai, Vietnamese, Polish, Farsi, German, French and Romanian.[/mks_accordion_item]

[mks_accordion_item title=”Q: You said that the USB Immunizer was multilingual. How do I change its language?”]A: The USB Immunizer “reads” the “Current Location” in the Region and Language settings and automatically loads the language file that is most appropriate for your system. If there is no translation for the Immunizer available for the region you’re in, the UI will automatically default to English.[/mks_accordion_item]

[mks_accordion_item title=”Q: What does the Computer Immunization setting do?”]A: The Computer Immunization setting disables the Registry entry related to Autorun, so as no removable storage device (except for CD & DVD ROM media) to be able to automatically execute a file upon mounting. It also immunizes each system partition with a specially-crafted autorun.inf file.[/mks_accordion_item]

[mks_accordion_item title=”Q: Can I immunize an USB device on-the-fly as soon as it has been plugged into the computer?”]A: Yes, if you have the USB Immunizer running, you may tick the Automatically immunize USB drives box in the Options tab and every non-immunized USB drive plugged into the computer while Bitdefender USB Immunizer is running will be automatically immunized.[/mks_accordion_item]

[/mks_accordion]

<html v=”urn:schemas-microsoft-com:vml” o=”urn:schemas-microsoft-com:office:office” w=”urn:schemas-microsoft-com:office:word” m=”http://schemas.microsoft.com/office/2004/12/omml” xmlns=”http://www.w3.org/TR/REC-html40″><body><div style=”position: relative”><div id=”attachmentDiv1″><div id=”attachmentDiv3″><div style=”position: relative”><div class=”WordSection1″><p class=”MsoNormal”><span style=”font-size:9.0pt;color:#17375E;mso-style-textfill-fill-color:#17375E;mso-style-textfill-fill-alpha:100.0%”><o:p/></span></p>
<p class=”MsoNormal”><span style=”font-size:9.0pt;color:#17375E;mso-style-textfill-fill-color:#17375E;mso-style-textfill-fill-alpha:100.0%”>Bitdefender USB Immunizer is a free and easy to use tool that helps make sure you transfer the files, not the viruses.
It disables autorun-related threats before they access the computer. Once installed, it constantly watches for newly inserted USB storage devices and immunizes them on the fly.<o:p/></span></p>
<p class=”MsoNormal”><span style=”font-size:9.0pt;color:#17375E;mso-style-textfill-fill-color:#17375E;mso-style-textfill-fill-alpha:100.0%”><o:p>&nbsp;</o:p></span></p>
<p class=”MsoNormal”><span style=”font-size:9.0pt;color:#17375E;mso-style-textfill-fill-color:#17375E;mso-style-textfill-fill-alpha:100.0%”>The FAQ for the latest version of the USB Immunizer can be found
<a href=”/content/images/wordpress/2011/06/FAQ.txt”><span style=”color:#17375E;mso-style-textfill-fill-color:#17375E;mso-style-textfill-fill-alpha:100.0%”>here</span></a>.”<o:p/></span></p>
<p class=”MsoNormal”><span style=”font-size:9.0pt;color:#17375E;mso-style-textfill-fill-color:#17375E;mso-style-textfill-fill-alpha:100.0%”><o:p>&nbsp;</o:p></span></p>
<p class=”MsoNormal”><span style=”font-size:9.0pt”>Multumesc frumos,<o:p/></span></p>
<p class=”MsoNormal”><span style=”font-size:9.0pt”>Adina<o:p/></span></p>
<p class=”MsoPlainText”><o:p>&nbsp;</o:p></p>
<p class=”MsoPlainText”><o:p>&nbsp;</o:p></p>
<p class=”MsoPlainText”>– <o:p/></p>
<p class=”MsoPlainText”>Adina JIPA<o:p/></p>
<p class=”MsoPlainText”>Junior Product Marketing Manager<o:p/></p>
<p class=”MsoPlainText”>ajipa@bitdefender.com<o:p/></p>
<p class=”MsoPlainText”><o:p>&nbsp;</o:p></p>
<p class=”MsoPlainText”>Bitdefender<o:p/></p>
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<p class=”MsoPlainText”>Bucharest, 062204, Romania<o:p/></p>
<p class=”MsoPlainText”>tel +40 212 063 470<o:p/></p>
<p class=”MsoPlainText”>fax +40 212 641 799<o:p/></p>
<p class=”MsoPlainText”>www.bitdefender.com<o:p/></p>
<p class=”MsoPlainText”><o:p>&nbsp;</o:p></p>
<p class=”MsoPlainText”>– <o:p/></p>
<p class=”MsoPlainText”>Think Green! Are you sure you need this printed?<o:p/></p>
<p class=”MsoPlainText”><o:p>&nbsp;</o:p></p>
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<p class=”MsoPlainText”>in error, please notify us immediately and then delete it from your<o:p/></p>
<p class=”MsoPlainText”>system.&nbsp; Bitdefender SRL is neither liable for the proper and complete<o:p/></p>
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<p class=”MsoPlainText”>delay in its receipt.<o:p/></p>
<p class=”MsoPlainText”><o:p>&nbsp;</o:p></p>
<p class=”MsoPlainText”>—–Original Message—–<br/>
From: Matei Razvan Stoica [mailto:mstoica@bitdefender.com] <br/>
Sent: Monday, April 30, 2012 12:00 PM<br/>
To: Adina JIPA<br/>
Cc: Bogdan BOTEZATU; Bogdan Timofte; Alexandru BALAN; Dan Berte; rbenchea@bitdefender.com Benchea<br/>
Subject: Re: Immunizer</p>
<p class=”MsoPlainText”><o:p>&nbsp;</o:p></p>
<p class=”MsoPlainText”>It’s up, 255 downloads already :)<o:p/></p>
<p class=”MsoPlainText”>GG all<o:p/></p>
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