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Questions tagged [antivirus]

Antivirus or anti-virus software is used to prevent, detect, and remove malware, including but not limited to computer viruses, computer worm, trojan horses, spyware and adware.

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61 views

What is the difference between rooted and unrooted Android devices in regards to Anti-Virus software?

What is the difference between rooted and unrooted Android devices in regards to Anti-Virus software? I looked at the scan log of an Anti-Virus software and saw that directories such as /data/data ...
0
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1answer
209 views

Is there something fishy on Kaspersky Internet Security or I am missing something?

Whenever I turn on my computer, a notification pops up - You need to restart you PC (I have added screenshot). I did, but it keeps coming. So went to notification center and saw which application is ...
0
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1answer
55 views

ClamAV detects virus in Modsec Audit logs

I have a Xen VM running Debian Stretch with Apache2 to play around with. I have installed ClamAV and Modsecurity (not doing anything just logging at the moment). I keep getting emails from ClamAV ...
0
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0answers
48 views

How secure antivirus updates that do not use secured HTTP?

How secure antivirus updates that do not use secured HTTP? I suspect that the antivirus I'm using makes updates through unsecured HTTP. Moreover, it transfers using GET method information about my ...
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0answers
47 views

How to test behavioral detection of antivirus

I want to test to see if my antiviruses are working correctly and if possible to see which one is better. As each antivirus has two parts I want to test both. For signature-based detection, I use ...
2
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1answer
78 views

Antivirus recall and precision not accuracy

I am studying antiviruses how antiviruses work at my university. This is just the very basics. He asked in our opinion which we think is better: recall or precision. Why does my professor say he ...
0
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1answer
95 views

How can I explain our system admins that AV can't protect our enterprise machines from attacks leverage on USBninja?

Was hoping to get your support to help to explain to our system admins how come the AV can't protect our enterprise from attacks that can be generated from USBninja. How can I explain our system ...
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1answer
63 views

Is there any example of a network-based anti-virus system? [closed]

Is there any example of network-based anti-virus system? There are two types of anti-virus systems; one is host-based, and the other is network-based. We often see host-based anti-virus systems(...
3
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1answer
102 views

Is there any risk in adding exceptions in the antivirus software for paths that are only writable by Administrator?

Sometimes antivirus administrators don't want to add any exceptions for the antivirus software. My question is what is the risk of adding paths that whose permissions are correctly configured to allow ...
0
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0answers
39 views

Why should we use antivirus scanning on our NAS?

When using non-persistent VDI windows instances that running AV but the storage is on NAS, should we also install AV on the NAS to do real-time scanning or it's good enough that we have AV running on ...
1
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3answers
82 views

How to detect a virus /malware missed by antivirus program

I was On FB page,accidentally clicked an ad. Another window opened up and locked the browser with background audio message, purportedly from MS, warning about security compromise on my PC. Unplugged ...
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0answers
63 views

What's the deal with .LNK (Windows shortcuts) files?

Today Ms Security Essentials thought that a .lnk in my computer was infected and quarantined it. It seemed legit to me, just a shortcut to my H2 (database) console script, which I had installed (in ...
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0answers
8 views

Exclude specific file from Windows Defender command line [migrated]

I want to know how to exclude a specific file or file extension from Windows Defender from the command line. Does anyone have experience with this? I want to know either how to exclude a file from ...
2
votes
1answer
43 views

Verifying Host Sterility After Running Malware Tests on Virtual Machine

I know that "VM escape" is becoming a common issue now with malware testing. I'm just wondering if there's any way of verifying if the host system is clean from any infection after running a malware ...
1
vote
1answer
74 views

How did antivirus vendors find malware to include in traditional AV signatures?

Forgive me if it's a silly question, but I'm genuinely curious. How do traditional AV (signature-based only) vendors get the malware to analyse and include in definition files? Also, what's the ...
0
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1answer
75 views

Can ClamAV detect CSV Injection?

I'm allowing users to upload CSV files. Other users can download these files. I'm aware that CSV could be an attack vector. Would a ClamAV (or other AV) scan offer protection against such a file? ...
46
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8answers
9k views

Replacing Windows 7 security updates with anti-virus?

Microsoft has announced Windows 7 will no longer be receiving updates after January 14, 2020: Here. I hate windows 10's forced updates and telemetry so I have always stuck with Windows 7, but it may ...
1
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1answer
77 views

Do Anti-Virus programs scan running processes?

If I have malicious software running, and I can see it in the Task Manager, is an AV program expected to scan the processes running and test if they are a virus/malware? Or, does AV have to: Detect ...
2
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1answer
53 views

Real time Anti-virus communication with API hooks

I'm writing a simple user-space, real-time, anti-virus project, with normal permissions. Reading about many techniques an AV vendor works, I eventually chose to implement inline APIs hooks. I have ...
0
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1answer
78 views

Strange and unknown user name on Windows 10

Today I was through folder information and, when I switched to the security tab, I observed that there were 5 users listed there. In this list, there was also a user called "yupgyzmhuma". I tried ...
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0answers
33 views

Does Local API Hooks trigger Anti-Virus Flags? [closed]

If I do API hooking on my local Address Space (without doing dll injection on other process), will the AVs be triggered?
1
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1answer
35 views

Multiple outbound TCP/8333 connections containing the EICAR test string

An IPS / IDS / UTM detects 50 connections from a single client containing Virus/Worm Eicar test string within half an hour. The destinations are IP addresses all around the world on port TCP/8333. A ...
0
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1answer
131 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 ...
0
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1answer
85 views

How to analyze and track what data a software sends?

How can i track which program sends data over my network and can i see the contents of it? If we have a AV software installed in a VM , can we see what it's sending from your pc when doing a scan?
2
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1answer
55 views

What information can antivirus software collect?

If you take Dr web for example, it lists personal data and statistics, what do those mean? https://free.drweb.com/cureit/send_statistics/
3
votes
1answer
141 views

How does AVG insert its signature into Gmail emails?

I just sent an email from gmail loaded in my Chrome web browser. Also on the Windows 7 computer is AVG "anti-virus". Turns out AVG somehow managed to insert a signature into the email I sent out. ...
0
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4answers
100 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 ...
1
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1answer
67 views

Avast antivirus virus alarm while programming [closed]

I was programming a function pointer in C on CodeBlocks. When I compiled and ran it, Avast showed an alert message and quarantined the .exe. Is there a solution? Or do I need to disable Avast while ...
0
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2answers
132 views

How to hide a process in Windows?

Is there a way to make a process hidden without using any Administrator-level priviledges? I am building an antivirus which I want to protect from malware's actions, such as ending the process, or ...
0
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1answer
75 views

Knowledge Base about Windows Defender

I am trying to find more information on the alerts that come up from Windows Defender and include one of the following: Remediation Status: What is it?, what are all the different types? and what ...
0
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0answers
50 views

Bitdefender showing lot of Getting Suspicious Connection Blocked from Chrome extension Toby

I'm using GetToby Chrome extension to manage my tabs and save them for later. Lately, I've been getting lots of notifications from BitDefender about blocked suspicious attempt: chrome.exe attempted ...
146
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20answers
39k 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
47 views

How does an antivirus flag homemade malware? [duplicate]

Say I made some malware in python or c# or whatever language, How would an antivirus detect that the program has malicious intent because how does the antivirus know that the program is malicious ...
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1answer
135 views

Why does windows defender scan my computer multiple times [closed]

Occasionally, Windows Defender sends me a notification that my device was scanned. This occurrence is quite ordinary and boring, but I actually devoted two seconds to reading the entire message once, ...
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1answer
116 views

Explaining malware avoidance tactics

Most "how tos" regarding malware list this: Install Antivirus software. Install latest antivirus software. Run antivirus software regularly. Install latest operating system. Install any patches to ...
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1answer
381 views

How to (temporarily) disable McAfee Endpoint Security on an enterprise workstation?

I need to temporarily disable McAfee Endpoint Security on an enterprise workstation after having obtained local administrative privileges. The McAfee Endpoint Security settings are protected by a ...
3
votes
3answers
77 views

Why does VirusTotal have two different reports for the same hash depending on FILE vs URL submission?

Why would the same SHA256 Hash of a file have totally different VirusTotal results at the same time? Submitting a file to VirusTotal via File upload results in numerous hits for malware. ...
2
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0answers
227 views

Where is the Administrator password for McAfee Endpoint Security stored on the local machine?

Where is the Administrator password for McAfee Endpoint Security stored on the local machine? I've tried to locate the Administrator password for McAfee Endpoint Security in the registry on the local ...
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0answers
84 views

Heuristics-based vs behavioral malware detection

I'm working on my thesis and I have a couple questions about differences between heuristics-based and behavioral malware detection. Does heuristics-based detection rely only on statically examining ...
1
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0answers
76 views

How to prevent the ransomware to run with administrator privileges?

We have been attacked by the ransomware recently (adobe li). The strange thing is that ransomware was able to gain unimaginable high privileges. The virus of the ransomware has been located on the ...
0
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1answer
77 views

Does Windows 10 provide sufficient virus and threat protection? [closed]

I am configuring a new laptop with Windows 10 Home and trying to determine if it is necessary to buy one of the big antivirus packages such as Norton, McAfee, etc. Is the security software that comes ...
1
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2answers
37 views

What risks do I take using an application that always requires admin access and AV exception listing?

My knowledge level about OSs and security is extremely low. Is anyone willing to tell me whether it's risky for me to use an application that requires me to run it with admin permissions and to put it ...
2
votes
1answer
116 views

How does Malwarebytes intercept web traffic?

I use Malwarebytes and the web filter functionality puzzles me. As far as my research has found, antivirus engines typically use a proxy to intercept web requests which typically there would be ...
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2answers
61 views

How to protect your anti virus program or logging agent?

its a very simple question but might not be too trivial. Imagine an attacker has access to your device and gained SYSTEM privilege. Your company has installed a logging agent on your device to capture ...
0
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2answers
117 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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votes
1answer
68 views

Online traffic monitoring by ISP for safety purposes [closed]

I have a question regarding approach to online security and protection against viruses, malware and phishing by one of the biggest European ISP. Below you will find my understanding of the topic. Is ...
0
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1answer
129 views

Do SSL proxies such as those from antivirus vendors hijack client processes?

In an attempt to understand the topic further, the following posts were reviewed. Why is 'avast! Web/Mail Shield Root' listed as CA for google.com? Are the certificates from “skype click to call” ...
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1answer
291 views

System Infected: Trojan.Naid Activity [closed]

We have Tomcat 6 in the production server with Symantec Endpoint Protection on windows server 2008 server datacenter. Symantec showing following lines in logs [SID: 27068] System Infected: Trojan....
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2answers
203 views

Malware Author's Mindset

I'm studying common malware characteristics, and I'm having a bit of difficulty understanding the design choices the malware authors make. Many of said choices seem to revolve around making life ...
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2answers
100 views

What is the thought process behind, Endpoint protection is better than firewalls?

I keep reading about, and seeing people post and recommend in the oddest places, that strong endpoint protection is better than having a in-service/supported/receiving security updates firewall. What ...