Ubuntu :: Ensuring Everything Is Clean After Virus Infection?
Jan 15, 2011
Not sure if this is in the right place, but last night I fell victim to a Java exploit in my W7 partition and then had to clean up a very messy virus. It was the "system tool" virus for those of you who are curious. Upon infection I immediately disabled my internet connection and then moved to my Ubuntu partition and from there cleaned up the infection. However, I did not notice it for a little while so it might have had some time to do some damage so I am a little concerned that something might have been hurt.
Since then I have scanned with Microsoft Security Essentials, ClamAV, AVG bootable USB, and MBAM and found one Trojan, which was successfully cleaned up (that Trojan was in my Java temporary files). Does anybody have any suggestions about other measures I can take to ensure that my computer is safe for use?
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Dec 23, 2010
I have a site that is currently on an unreliable server. Yes, we're fixing that; suffice to say the situation isn't permanent. I would like to know how to set up a fail check on the site. There are plenty of services out there, but I've got a server that I can add scripts to in the crontab. What elements would you recommend I have in the script?
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Oct 20, 2010
I run 64 bit ubuntu 9.10. I recently rebooted my computer with a flash drive plugged into a USB port. My question is, could I have got a boot sector virus because of this? What are the symptoms of a boot sector infection? After the incident, I scanned the flash drive with clamav and it didn't detect any viruses. Also, in the BIOS, the hard drive is higher up in the boot sequence than USB mass storage drives. These two things suggest to me that a boot sector virus is improbable. But, recently, when I tried to boot into ubuntu, I got an error message saying that /dev/disk/uuid<some characters here> didn't exist.
Is this a symptom of a boot sector virus? So, I ended up re-installing ubuntu and I believe grub was written to the MBR. Will this have erased any boot sector viruses that were on my system? Can a boot-sector virus affect linux too? How can I check to see if I have a boot-sector infection? I also have windows xp on my computer. For some reason, windows xp isn't letting me install any updates, but this has been going on for since before the above incident with the flash drive and therefore I don't think that is due to a boot sector virus.
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Jul 15, 2010
I have a dual boot computer. The WindowsXP "side" has been infected with a rootkit virus. So far UBUNTU has not been affected to my knowledge. I have not yet removed the virus from the WindowsXP "side". I am thinking of deleting the NTFS partition and have the computer fully dedicated to UBUNTU. Now for my question. Is there a possibility that the virus resides in the MBR and that I need to "rebuild" the MBR to actually remove the virus?
Even more extreme, should I totally re-install UBUNTU in the name of safety and precaution.
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May 19, 2010
I have snipped part of my log i captured on the my honey pot need recommendation on what is going o? The infected computers is located at address ${ADDRESS}. A quick check of my low interaction Honeypot (based on nepenthes) gives the following data: i know its a worm but what is going on thanks in advance
linux-sqos:/opt/nepenthes/var/log # cat nepenthes.log
<snip>
[18032007 02:26:03 info module] 76 4
[18032007 02:26:03 info module] SMB Session Request 76
H CKFDENECFDEFFCFGEFFCCACACACACACA
code....
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Aug 22, 2009
if there is any free software there used to protect Fedora from spyware and virus?
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Dec 18, 2010
I have problem with my printer HP Deskjet D1460. My printer is configured and works. When I send a file on the print, the printer clings a sheet of paper and starts to print, but a paper as was clean so clean and remains, after printing.
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Oct 11, 2010
I configured cron to clean my /tmp directory, should I also add other locations to clean and especially /var/tmp.
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Dec 15, 2010
I used Avast webfilter (proxied webtraffic through Avast) when running Windows. Sometimes Avast would alert and "protect" me from being infected by a compromised website. NOTE: Avast would alert even absent clicking any links. Just viewing the page could result in infection. Should I be running some kind of proxy webfilter for protection? My understanding is that Firefox can be compromised and this can in turn compromise Ubuntu.Are these kinds of threats specific to Windows running Firefox, or Firefox per se. If Firefox per se it seems like I need some sort of Proxy webfiltering like Avast provides.
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Feb 4, 2010
Is there any difference between apt-get clean and aptitude clean? Do they both remove the same caches? Should I know any other commands for cleaning up wasted space on my ubuntu laptop?
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Jun 24, 2010
i have a virus in my mp3 that i don't know how to get rid of. the virus is called 'autorun.inf'. even though it doesn't affect Linux (i think) when i mount the mp3, the icon appears as if it was an empty folder. it use to let me delete/copy files into the mp3 but now it doesn't anymore. i cant delete the autorun.inf file or any file!
Ive had this problem before on the same mp3 and what i did was format the mp3 in windows but the thing keeps coming again and again . ive seen a couple 'windows solutions' for this but i dont have windows anymore so...
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Aug 1, 2010
I have a mac, but I have a lot of files on my Ubuntu machine, that i'd like to transfer over, but I would like to make sure they are clean.
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Nov 14, 2010
Being used to the pc i have always used resource draining virus protection programs. now that i have switched to ubuntu 10.10 i wanna kno is there rly any need for virus protection on my linux?
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Jan 3, 2010
What is the best protection program against viruses and how they can be revealed on the device
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Sep 12, 2010
Since I am having troubles with sharing folders with win xp in virtualbox, I would like to know whether the following sort of idea is feasible: I want a windows xp system on which I can test my softwares with crack files - and crack files are mostly unlikely not to have viruses. Can it be used nearly full featured kind of virtually, so that this immunity to viruses can be achieved? But usual windows system usually are vulnerable to viruses; hence this question.
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Jan 19, 2010
I've noticed that on a regular basis I see facebook statuses complaining about viruses (e.g. "sorry I haven't been on in a few days... my comp got socked by a virus and I had to reinstall everything")
Lately I've taken to commenting on these with a link to Ubuntu with a short testimonial about how I've been using Ubuntu exclusively for years and have not had any virus problems since (nor have I installed any anti-virus software).
On the flipside, I know that Ubuntu is not the savior to all computer problems, and that it has its own issues, but I just want to let people know that there is a choice out there, and they can choose if they would rather deal with Windows' issues or Ubuntu's issues. For many users, Ubuntu would make a lot of sense.
But I rarely get any response to these comments, and I wonder if I should stop bothering. Do you think this does any good? Maybe it just aggravates people? Maybe they have no idea what I'm talking about and the link I post makes no sense to them?
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Jul 4, 2010
I'm quite new to Ubuntu and I am running Ubuntu Studio 10.04 . I have just installed Klam AV and had it scan my computer . I was surprised to find that it had found two 'viruses' . I don't know if anyone can help me in finding out if they are real or only false positives . The following is the output that I received .
Name of File
/usr/src/fglrx-8.723.1/libfglrx_ip.a.GCC3 and GCC4
Name of Problem
Heuristics.Broken.Executable
Status
Loose
Does anyone know if this is a problem.
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Jul 31, 2010
A while back I had been using ubuntu on a live cd after my windows partition had been taken over by a virus, which at the time I thought had been removed by my anti virus (and then took out winlogon) and I did a system repair instead of a complete reformat because I didn't want to lose all of my files. After repairing, I noticed some things like what looked like fake "this page has been blocked based on your security preferences" on major sites like ....., myspace and facebook. I ran another virus scan with a different AV and strangely it detected a behavioural software keylogger, which after looking it up seemed to be something that could only be installed with physical access to the system, which confused me. Anyway, this is when I started to use the live CD to copy some of my music, videos, pictures etc. onto my flash drive. From what I can remember, I used this USB on my main computer without problems, but the last time I used it (few months ago) I ran a virus scan afterwards, just to feel safe and it came up with a couple java exploit trojans. This was probably just coincidence and I hadn't ran a scan in a day or two, possibly even a false positive as I noticed no decrease to system performance or any odd happenings.
So, my questions are: Is it even possible for a virus from a windows partition to copy itself to a USB flash drive on an ubuntu live cd; and is it possible (if the virus was even capable of this) if I insert the flash drive into my ubuntu computer, it could do anything like transfer across my WLAN to my windows computer, or even copy its files onto ubuntu but be unable to do anything? Which brings me to another question: if I visit a website that may contain drive-by malware or a virus of any type, is it capable of acting at all, such as even trying to transfer itself into my home folder, or does it not even recognize ubuntu at all and do nothing?
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Aug 19, 2010
Unable to send mail thus adjust protocol port and it worked. Things moving slow on computer. Thus ran clamtk virus scanner. It found a virus. Tried to quarantine it but not successful. Have GUI version 4.15 Antivirus engine .95.3. Virus is located at
/home/kim/.mozilla-thunderbird/zrlm4cOj.default/Mail/LocalFolders/Inbox Phishing.Heristics.Email.SpoofedDomain
What do I do to get rid of it?
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Sep 24, 2010
My machine that is running Windows XP got a virus a few months ago. Keep in mind I have NEVER used Internet Explorer.
Symptoms when CONNECTED to the internet: My volume is turned down on start-up. When the volume is on the internet explorer "clicking" noise plays frequently. In task manager there are two "iexplore.exe" processes running. As soon as I kill them they will start up again. They aren't taking up copious amounts of memory, but they are still very present. If left on for long enough pop-ups will start appearing.
Symptoms when NOT CONNECTED to the internet: None.
What I've done: I've ran a handful of the free Anti-Virus programs, e.g., AVG, ComboFix, avast!, and Malwarebytes' Anti-Malware.
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Oct 9, 2010
i have dual boot windows xp and Ubuntu 10.04 so i was wondering if it is necessary to install an anti-virus software?
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Dec 7, 2010
I have Avast Antivirus installed in Ubuntu 10.10. There are options to select folders to scan from 1. Home Directory 2. Entire system and 3. Selected folders. What are the options available to scan only selected drive. OR How to scan only USB stick.
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Mar 1, 2011
if I executed a Windows Virus in the program "Wine" in Ubuntu.
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Aug 13, 2011
I want to make a anti-virus Linux to put on a USB drive for use with other computers that have viruses. The only problem is I have no idea how to do this. CLI-only should be fine (if there are any CLI anti-virus programs). So is there something I can get that's already made for this or should I get a regular distro and remove everything I don't want and install what I do? What tools should I get.? Also, a link to instructions on installing on a USB drive would be helpful (I also plan on putting some LiveUSB's on the same drive,
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Apr 27, 2011
How to wipe this hard drive clean like new, formated #4 linux when finished.W/D 500 GB
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Feb 10, 2010
Would I need to scan the (root /) directory with sudo clamtk or would running clamtk be sufficient? Theoretically, if Ubuntu did get a virus; would this virus try to establish itself in / rather than /home? Also is it correct to presume that to scan the /home directory; running sudo clamtk wont do any more than just running clamtk?
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May 12, 2010
I'm dual booting 10.04 with windows 7 and it occurs to me that I could scan the windows partition for viruses FROM linux. Is anybody doing this sort of thing? Does that make any sense?
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Jun 6, 2010
Since Wine recognize the .exe filetype and associates itself with it, is it possible to get a virus that starts up automatically in wine or is it limited to me manually running the program?
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Aug 3, 2010
I need to remove virus/injections from hindered of files from my web server, infected due to virus/injection.
i am working on simple idea.
1. script ask pattern as input from user OR pattern as input file.
2. script ask the specific path as input OR or list of infected file to be provided to remove pattern from path/list files.
3. find awk sed to remove pattern.
is there any better way ?
I can write bash script.
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Feb 15, 2011
I know Ubuntu doesn't really become the receiving end of Virus and melware but IM one of those users that proves that there are virus out there for mac and Linux.Like a few years ago (back during 8.o5 Ubuntu i think i downloaded a hefty amount of software with out considering the recourse Thus I became the receiving end of a nasty Ubuntu target virus sucked and at the time it ruined my fun so i went back to the windows virus any ways I'M looking for a virus protector that works on Linux as I tend to be Very.. *ehem...* dumb when it comes to what not to download
so ya other then avg (i had that on windows virus and its awful)also could I get an idea of things NOT to download?
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