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Questions tagged [virus]

A computer virus is a program or piece of code that tends to be malicious and is loaded onto your computer without your knowledge and runs against your wishes.

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b7c81.rbf file? Is it dangerous? [on hold]

I started the computer as usual but I noticed of a weird process in the task manager, the file was called b7c81.rbf and when I looked its properties, it said that it was from a Config.msi file (or ...
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4answers
94 views

The safest way to transfer files to an offline test environment

I'm wondering what the best tactic is to transfer dangerous files from an internet connected machine to an offline, separated from the web, virtual machine. Why should I do that? Because I want to ...
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2answers
94 views

Opened a phising email on school email

Hello I opened this email sent to my school email and I realized it was a phising email. And now my OCD and anxiety are going haywire. Is it possible I got infected? I did not click on any links. I ...
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0answers
37 views

Eventviewer empty logs with English written in Cyrillic Greek

So a while ago I entered my event viewer on windows 10 and I noticed a bunch of weird entries. They look like they where written in English but with the use of Cyrillic and Greek alphabets. I am ...
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1answer
108 views

Is there any virus for wi-fi routers that only slow down internet speed and nothing else?

Theoretically I should get 8 MB/s, but over the last 2 months I have hardly been getting 2.5. My ISP claims, on the phone, that my router has a virus in it from a downloaded file. They seemingly have ...
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1answer
128 views

Why doesn't WannaCry ask to “make changes to this computer” when you run the exe? [duplicate]

When you click on WannaCry, why doesn't it ask "do you want the following program to make changes to your computer?" I've watched videos of people running wannaCry, and it doesn't. I've also watched ...
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0answers
4 views

Is my webcam hardwired? [migrated]

I want to know if my webcam LED can be controlled by software (malware) or if it is hardwired. My understanding is that if a webcam's LED is hardwired it cannot be turned on by a hacker without the ...
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1answer
25 views

What is this NAT rule forwarding UDP port 1052?

I just went to have a look through some router settings today and found an unknown new entry in the NAT table, forwarding UDP port 1052 to the same port on a host which runs both Windows 7 and Linux. ...
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1answer
102 views

Cmd shuts down computer immediately after windows boots up and logs into the default account/user

as the title suggests, after I login to default/main account which has administration privileges, after desktop loads almost instantly CMD opens and shuts down the computer, only way I found to stop ...
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2answers
71 views

I know where I downloaded a virus, should I report it somewhere [duplicate]

I was installing pytool forge and accidentally downloaded virus (clicked wrong link). Should I report this link somewhere? Are there plans to create global virus police task force? I am sorry, it is ...
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4answers
97 views

Trend Micro showing security warning on website. Unsure how to resolve it

I have a client with a website that sells a book. When someone clicks a button to purchase the book, a form is supposed to pop up (and does). However, I received a screenshot showing that, when that ...
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1answer
170 views

PDF UrlMal-inf[Trj] Virus

When I create PDF file from my particular DOCX file, it gets infected with the virus. But if I create a new DOCX file and create PDF from that, it doesn't get infected with the virus. I have tried ...
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3answers
266 views

Should I be worried about old viruses from a hard drive that hasn't been used in the last 13 years?

I recently built a new PC with windows 10 and I was recovering some pictures from an old hard drive that I had in one of my PCs from about 13 - 15 years ago. The hard drive has just been sitting in a ...
146
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20answers
38k views

Has it been mathematically proven that antivirus can't detect all viruses?

What analysis was Bruce Schneier referencing when he wrote: Viruses have no “cure.” It’s been mathematically proven that it is always possible to write a virus that any existing antivirus program ...
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1answer
113 views

badBIOS reflashing

This is not a has-badBIOS-pwn3d-me post, so don't worry about any paranoid rants. Having read a thorough analysis/debunking of the alleged evilware, I certainly understand that the technology badBIOS ...
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3answers
1k views

New Linux virus “watchbog”. What could be the cause? [duplicate]

This question had already been brought up here, but was poorly answered with generic answers, like reinstall everything and no actual solution and cause. So here's my story: There is a new virus out ...
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0answers
43 views

Chrome recently randomly downloaded a file (20bytes long) when I clicked on a normal link on reddit(is this a virus) [duplicate]

I clicked on link and chrome randomly downloaded a file and it went to my downloads folder .. I didn't click on it I just deleted it. I started searching for any random like files and came across ...
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0answers
65 views

.[fileslocker@pm.me] virus [duplicate]

I have one PC (Windows 7) which is attacked presumably by a ransomware (in spite of having regularly updated antivirus viz Net Protector AV). What I could see is this -- In MySQL/bin folder, all files ...
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0answers
65 views

Check all components for firmware manipulation?

Is there a way to check most flashable components such as Ethernet card, UEFI, Bluetooth & WiFi card, DVD driver, USB port for firmware integrity? Of course I'm not talking about using software ...
4
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2answers
181 views

Upload malware to F-Droid repo?

What's the auditing/vetting process like to get an Android app into the F-Droid repository? To ask it another way, what's to stop an evil developer from uploading a backdoored Android app to the F-...
0
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1answer
200 views

Double user-agent. Malware?

The place where I work sometime is receiving some alert from the NIPS stating : [1:30918:2] "MALWARE-CNC User-Agent known malicious user agent - User-Agent User-Agent Mozilla" The user-agent in the ...
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1answer
1k views

I have a process called “watchbog” that is completely hogging my CPU and I don't know what it is [duplicate]

This process that has come out of nowhere is hogging my CPU and I have no clue what it is or how to get rid of it. You can see in the image below what it's doing: What is this process? How can I get ...
4
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1answer
97 views

How can I recover my exploited android phone?

I have a Samsung S9 phone that has been exploited by my neighbor, however I am unsure as to how to prove/verify it, how in depth the access is to my phone, or how I can re-secure my phone. It seems ...
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2answers
325 views

Did I just infect my machine?

I just ran an AVI file that was sent to me, thinking AVIs were safe. Turns out it was a windows shortcut with this in the path: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -NoPr -WINd 1 ...
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1answer
47 views

Can a compressed archive be constructed in a way to extract into system folders?

Using compression utilities, is it possible to create an archive that when extracted, will place certain files in certain areas on a users PC? For example, suppose if I wrote a virus or a malicious ...
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1answer
61 views

I get an e-mail with *.VBS virus file [closed]

I unwisely opened the file. I was sure that Windows will ask me if I am sure to run this script, but unfortunately, it wasn't. Now I am wondering what that file is exactly doing. Can anyone help? ...
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1answer
602 views

Potential UEFI malware from Virus Total .rom scan

I dumped my firmware on my Macbook with Darwin Dumper and uploaded the .rom file to Virus Total and it showed a huge amount of bad PE32 images (File detail tab), all of which seem to be detected by ...
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1answer
74 views

Can my PC get infected by a shared USB drive?

I gave one of my flash drives to a co-worker to share some files. He transferred the files to his computer and gave me back the drive a minute later. Is it possible for my computer to have been ...
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1answer
188 views

What is “Waiting for eb2.3lift.com…”?

I am using purevpn on Firefox, I have noticed that when I open the browser sometimes it hangs and on the bottom left hand corner it says "Waiting for eb2.3lift.com..." I tried to google this eb2....
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2answers
115 views

Is Kaspersky Total Security a good choice against malware? [closed]

I've been using Kaspersky Total Security for quite some time even though I'm not an Information Security professional, I heard it was considerably efficient. Yesterday, though, I was navigating ...
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1answer
96 views

Will a CD automatically get infected when it is inserted?

If my computer has virus and I inserted a CD, will the virus automatically move there?
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2answers
151 views

Could my computer have downloaded some sort of virus or malware after clicking this button?

I went to the website: katsokos.com, and was shown this page: I stupidly clicked on the verification button and was redirected to the chrome store page for some chrome plugin, as well as the website ...
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1answer
130 views

prevent Ransomware on CIFS shares mounted on Windows 10

I am using Windows 10 with Defender. I follow all the ground rules when dealing with the internet and staying secure. I work in IS so I'm pretty familiar with the various threat-vectors and do a good ...
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2answers
255 views

How does a polymorphic virus identify whether it's already infected a file?

If a virus usually recognizes itself via a signature, but the virus changes every time it replicates, how can the virus identify if a file is already infected to avoid re-infecting? It seems like any ...
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0answers
121 views

Is This a Virus?

i want to ask about a program is it a malware or a program from mozilla? When i turn on my pc it start normally but i see an open program called update.exe and it have a firefox icon on it, when i ...
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3answers
71 views

Scan for infection of malicious files manually?

I know there are options of free security softwares out there that do good job like malwarebytes, but I really want to learn how to scan for possible threats of malicious files on your pc manually. I ...
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1answer
77 views

Is it possible to become infected with virus, trojan or malware by browsing the infected sites or running installation .exe?

I am quite paranoid and I am always afraid that when i accidentally open some infected sites it would run scripts that automatically download malwares, viruses and trojans into my pc and run by ...
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1answer
118 views

Is my network infected? Suspicious messages and devices slowing down

Recently a family friend has been complaining that he has been getting hacked on his home network and that he has been receiving suspicious messages from the attacker. He says that the attacker has ...
2
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2answers
156 views

Can a file that has been opened and read still contain a virus?

When I download files I am unsure of from the web I typically download them into Sandboxie to be safe. If I open a downloaded file within the sandbox (a pdf of a book for example) and I open to find ...
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1answer
85 views

PC Isolation on network

I believe I have my answer but I just want to be sure. Basically I repair computers, most of unknown origins. Of course some could have viruses and such so I was wondering what the most efficient way ...
2
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1answer
136 views

Why dont anti-viruses detect encrypted viruses in decryption?

Some viruses are encrypted so that the anti-virus cant identify them, but what i dont understand is, why wouldnt the anti-virus doesnt detect them, considering they have to decrypt themselves before ...
4
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2answers
144 views

How to find what files in a zip are malware using Virustotal

I have a malware infected android phone and I am suspicious that some of the binaries in system/bin/ and system/xbin/ are malware so I decided to dump the system and zipped the contents of bin and ...
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3answers
259 views

Anatomy of a very creative .txt virus/trojan. How does it work?

So I downloaded a PDF which is password protected. Inside the same folder there are the following apparently harmless files: As you can see, they are both .txt files, right? Pretty harmless.. ...
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5answers
258 views

Why can't you and how to take a picture from infected computer?

Let's say I know that there is a computer than is heavily infested with viruses (but I do not know which kind of viruses) and needs to be nuked from orbit. And on that computer is a very important ...
3
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1answer
128 views

What do you search for in Open Source code to be sure there isn't malicious code?

I realize the answers will be language specific, but I am curious what terms you would look for when checking something out on Github? I was looking for a remote administration tool that I could use ...
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2answers
459 views

How to handle the virus on my router?

I believe my router is infected with a virus. If it is, it has been infected for a large period of time (perhaps a year or more). Though, I only started to consider it being a virus around a week ago. ...
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1answer
149 views

Virustotal detecting threats in Suricata rule set

Virustotal scans are detecting threats from the Suricata default rule pack located https://rules.emergingthreats.net/open/suricata-4.0/ Is this a false positive? https://www.virustotal.com/#/file/...
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3answers
47 views

Read Write Execute on infected thumb drives

There is some debate going on among my peers. With differing opinions regarding risk on infected thumb drive with limiting policies set on it. Question is Can you still get an infection with read ...
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1answer
299 views

Can I get malicious malware in my computer or any kinds of virus by registering through Google/Facebook to a specifc site?

Lately, there is a start up company in Israel called Initiative Q and currently it gives out coins (that are similar to bitcoin but they don't run on Blockchain technology) in order to advertise their ...
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2answers
220 views

How to act on company-wide malware infestation

A colleague left and I have been entrusted with the security of the company. Checking an initial status I found that the machines are infested with viruses and there are multiple port scans and brute ...