Questions relating to malicious software

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24
votes
3answers
3k views

Do Wine Viruses only work while Wine is running?

I heard Linux can get viruses through Wine,and I was curious if the viruses work only while Wine is running. In other words, could I stop a virus from doing it's thing by just quitting Wine?
16
votes
5answers
12k views

How to detect and remove a Linux trojan?

I recently (re)stumbled upon this: Linux Trojan Goes Unnoticed For Almost A Year (Unreal IRCd) Yes, I know that adding some random PPA/software from an untrusted source is asking for trouble (or ...
-1
votes
1answer
24 views

severe malfunction: computer unusable(system program problem detected) 14.04, 32 bit

I boot up my computer and sign in and immediately the "system program problem detected" box pops up and i click send report, and then the computer shuts itself down. My son was on a online game site ...
-2
votes
1answer
69 views

Urgent: I cannot install any OS in PC [on hold]

I cannot install any OS using a DVD drive (There is no way to install a Windows OS, no XP, Vista, seven or eight version...). When I am installing them there is a message that a file cannot be read ...
0
votes
2answers
25 views

Function key commands changing by themselves?? very weird problem

I am afraid that my computer has been compromised. In exactly 10 different instances, I have been browsing the web in Kubuntu 14.04 and have noticed commands from the function keys that I did not ...
21
votes
1answer
70k views

How do I scan for viruses with ClamAV?

I installed ClamAV via Terminal (Ctrl+Alt+T) with: sudo apt-get install clamav but how can I scan for viruses?
4
votes
1answer
642 views

How to check if my system is infected with the “Turla” trojan?

As many have heard/read the news, a module of the state-sponsored trojan malware named "Turla" was recently discovered which infects Linux hosts: (News from ArsTechnica) (News from OMG-Ubuntu) ...
1
vote
2answers
16 views

Ubuntu frequently hogging up disk space?

A little note before we begin, the machine was constantly active for 5 to 7 days straight, the only reason it was shut off at some point was to turn it back on immediately due to locking or unusable ...
1
vote
1answer
57 views

Would clearing the hard drive of my laptop remove any viruses it has? [closed]

Just would like to know because I have that option, I just got ubuntu 14.04 LTS and got a virus, so If clearing the hard drive would do it, then thats what i will do.
7
votes
6answers
1k views

Popup ad virus on both chrome and firefox

A pop-up ad box appears whatever site I am opening. Tried resetting settings, disabling extensions, removing all users on chrome. It seems it is not about chrome since same thing happens on Firefox ...
5
votes
5answers
9k views

watchdog/0 process using all my CPU suddenly

I have a fresh installation of Ubuntu 12.04, I have been running it for about a week. Suddenly today I noticed my computer freezes every 5 seconds. I restarted the computer and I still get this. I ...
0
votes
2answers
794 views

Cryptolocker virus

As you guys know cryptolocker is a Trojan which targets computers running Microsoft Windows and destroys files but.. is cryptolocker still a threat and can it infect my files in Ubuntu?
0
votes
0answers
60 views

Random Ad pop ups in Chrome

Whenever I'm browsing the web I get these random pop up ads. I really can't understand why, I have ad-block plus. Is it possible that I've been infected with malware or ad-ware? How can I put an end ...
2
votes
3answers
361 views

Can ubuntu be compromised?

My main reason for switching over here from Windows was because with the release of Windows 10, the VP of Microsoft wrote in the ToS (Yes, I read this with my very own eyes while installing it) that ...
0
votes
1answer
175 views

Does ubuntu require antivirus [duplicate]

Does ubuntu require antivirus? If yes then please tell me what's the difference between windows virus and ubuntu virus?
0
votes
2answers
44 views

Mounting an USB will prevent viruses?

Yesterday, I used dconf editor to prevent my laptop to automount an USB device. So, for example, if an USB had some Linux viruses (even if it's rare to find one), would it only activate if the USB ...
0
votes
2answers
69 views

VirtualBox Ubuntu [duplicate]

I created a virtualbox for ubuntu guest and my host is windows 8.1. Do I need to be carefull with virus passing from the ubuntu virtualbox to the real hard drive on windows?
38
votes
10answers
9k views

Can a Windows virus transfer to Ubuntu?

Before I removed Windows 7 from my computer and replaced it with Ubuntu, I had over 257 threats that never would go away. I don't know if the trojan horse I had also could transfer over to Ubuntu. Can ...
21
votes
8answers
3k views

Where can I look for malware that may have been installed on my machine?

I want to analyze my ubuntu box to detect if it was been hacked. My question is: what are all the place where to look to discover if some malicious software are started ? The following is some kind of ...
0
votes
0answers
48 views

Ubuntu 14.04 64 bit suddenly lost all data

I was just browsing and scrolling on the web on my Ubuntu laptop while Rhythmbox was on, then suddenly, my screen began blinking.. Icons enlarged while I turn the mouse wheel tho my hands are only on ...
3
votes
1answer
80 views

Root kit advice on ubuntu

I've been a Windows user for many years but recently Avast was bringing up 100's of Rootkit infected files. So I decided to make the switch to Ubuntu to wipe everything, and I’m quite enjoying the ...
0
votes
0answers
49 views

What is this folder named “PtzuZpSG8d” in my Home directory?

I am running Ubuntu 14.04 LTS. I have a folder named "PtzuZpSG8d" in my Home folder. Honestly, it has been sitting there for a few days. Today, when I tried to shift+delete it, it started preparing ...
133
votes
23answers
49k views

Do I need to have 'antivirus software' installed?

I thought that there was no need to scan for viruses either in Ubuntu or any Linux distros until I found virus scanner packages 'clamtk' and 'klamav' in Ubuntu software center yesterday. This leads ...
1
vote
1answer
336 views

Panoramtech ads on Firefox (ShowIP extension)

Since yesterday Noscript - the extension for Firefox, blocks a request to "panoramtech.net". After some researches, it seems that Panoramtech is a malware. How could my Linux system catch it? What ...
0
votes
0answers
10 views

Questions about how malwares might operate under wine [duplicate]

a recent scan by clamav found that a few exe files in the WINE directory are infected with a trojan (called Ratnim?). A have a few specific questions on what a windows malware can do under linux. 1) ...
17
votes
1answer
3k views

Unexpected Arabic messages below mouse pointer in LibreOffice - a virus?

This is weird. Today I opened an excel file with LibreOffice. Suddenly I saw the mouse changed color, and stuck to it was a message in Arabic, which changed every second in a loop. I can actually ...
4
votes
4answers
5k views

Is it risky to download a script with a http://goo.gl/ link?

Following the advise of an answer in Ask Ubuntu, I downloaded and ran a script with a URL starting by http://goo.gl/ Is it risky to use such file? could it be a virus or something else? If yes, what ...
1
vote
2answers
225 views

How come when I view a website, like Adobe or Godaddy Jolly Wallet pops up?

Whenever I visit a website like Adobe.com or Godaddy I get a banner like this, Adobe: Godaddy:
0
votes
1answer
42 views

Avast not up to quality?

When I follow this guide :http://howtoubuntu.org/how-to-install-and-update-avast-antivirus-in-ubuntu#.UvRO9vgju1E It says the .deb isn’t up quality code in the UbuntusoftwareCenter! I don't know to ...
1
vote
1answer
506 views

Chkrootkit findings - what to do?

after my ubuntu runs slower and slower and google regularly asks me for prooving to be human, i had Chkrootkit running. here's what it found: wlan0: PACKET SNIFFER (/sbin/wpa_supplicant [870], ...
1
vote
1answer
34 views

How to clean data when wiping/reinstalling a compromised server?

I have a server that has been compromised, where the logs have been blown out and I have neither the ability nor the time to discover what actual pieces of the system were modified. The server was ...
0
votes
0answers
91 views

Help recovering from a hack and a malware warning

On Thursday (2014/7/24) morning I discovered that one of my Ubuntu systems was hacked. I believe it may have been the malware NetWire. I was able to see some traffic from the internet directed at ...
1
vote
2answers
696 views

Virus infection in Ubuntu 14.04

I am using Ubuntu 14.04.My computer is infected by viruses or malicious software installed without my knowledge during web surfing. I am saying this because whenever I search anything in Google search ...
0
votes
0answers
222 views

Scanning Windows for Rootkits using Linux

I know of ClamAV for viruses, but is there an option for scanning AND getting rid of "rootkits" from Windows from inside Linux i.e. Live boot USB? Also spyware and malware scanning would be nice too. ...
0
votes
1answer
156 views

Viruses in Ubuntu 14.04? [closed]

My Ubuntu 14.04 system has been hit by a virus, I am 100% sure this is a virus, let me tell you what happened. So, I was playing Minecraft in my desktop with some friends on Skype, then my Skype logs ...
4
votes
2answers
3k views

Hand of Thief malware?

Anyone know anything about the Hand of Thief malware that has been announced for sale on an apparent underground cyber crime forum? It is said that is has been tested to work on Ubuntu! Should I be ...
1
vote
1answer
26 views

Is WUBI vulnerable to GOZeus and Cryptolocker etc?

The GameoverZeus (P2PZeus) malware, and associated Cryptolocker, has been blocked temporarily, but may resume its potency. Windows is said to be vulnerable to it, but not Linux. So is Ubuntu under ...
1
vote
2answers
82 views

myterious a.out file appeared in Downloads folder

Yesterday a file that should not exist appeared in my Downloads folder. Virustotal knows the file since 2012 and reports it as clean - but it seems other people have had it appear. Does anyone ...
-1
votes
3answers
665 views

Does ubuntu allow users to run ESET Smart Security?

Does ubuntu allow users to run ESET Smart Security? I am considering upgrading ubuntu from Windows 7 but I'm not sure if it allows the use of outside security programs.
3
votes
3answers
2k views

What do sapd, skysapd, sksapd, and ksapd do?

Does anyone know what sapd, skysapd, sksapd, ksapd do? Are they viruses? I tried clamav it didn't recognized them as viruses. I also realized that my /etc/rc.local has multiple copies of this: ...
26
votes
5answers
7k views

What if I run a virus/trojan Windows EXE on Ubuntu with Wine?

I've got a file said to contain information I was looking for. Unfortunately it is an executable instead of DOC (as it was meant to be) and the site I've download it from looks suspicious for me. If I ...
17
votes
2answers
1k views

Remove RECYCLER directory from virus infected flash drive

Before you advise me on the option of saving my files and formatting the drive using gparted, please understand that I could have done that hours back and that would have taken only a few minutes. ...
1
vote
0answers
54 views

Is my computer being hacked? Strange goings-on with menu.lst

I installed my Kubuntu 12.04 in Windows with Wubi. I've never installed any other version of Linux on my Netbook, definitely not Tiny Core Linux. Yet I have the following lines commented out in my ...
0
votes
2answers
38 views

ppa and System Security

I have been installing all my software from the Ubuntu Software Center. Recently, I had been installing software from PPAs. Can adding PPAs and installing software from them compromise the security of ...
1
vote
2answers
102 views

how can I know if a binary is malicious?

I downloaded a binary file from sourceforge and accidentally run it. How can I know if it is safe? I added my user to sudoers file before. Where can I submit it to scan safety?
0
votes
0answers
21 views

Clear Bling Vgrabber malware from Chromium

When asked to bring up my chrome bookmarks, I got the dreaded Vgrabber and Bling. On Windows 8.1 I would likely just run a system restore. I wiped my computer clean when I installed Ubuntu, so I ...
0
votes
1answer
307 views

Can't remove redirect malware on firefox

I researched and found: mypageresults.com is tabbed as a redirect virus that always slips into computer without user's approval. I can't remove it.I deleted all files of firefox.I removed firefox ...
3
votes
3answers
2k views

Trojan in Ubuntu? DigiNotar

On Wednesday, I installed an old copy of Ubuntu 10.04LTS onto a pristine desktop PC that I built w/ brand new hardware--DSL modem, too--except for the CPU. Then, I downloaded Ubuntu 12.04 from ...
12
votes
1answer
625 views

How to deal with malware on my laptop?

I am fairly certain that my Ubuntu 13.10 laptop is infected with some sort of malware. Every once in a while, I find a process /lib/sshd (owned by root) running and consuming lots of cpu. It is not ...