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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How does antivirus software fight polymorphic viruses [on hold]

Antivirus relies on comparing hashes. It is trivially easy for a virus to change its hash every time it reaches a new host. So I assume there must be ways for antivirus software to fight this. What ...
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1answer
24 views

Moving Infected Files to Trash versus Quarantining them

When you run an AntiVirus, typically they give you the option of quarantining the infected files. I remember when I was a kid I would move them to the trash bin instead. My question is, which method - ...
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3answers
3k views

Metasploit Meterpreter alternatives

These days I am testing various type of client hacking techniques, but in all scenarios I am using Meterpreter variations as payload. Now I can bypass Anti-Virus and Firewalls easily, but Symantec ...
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1answer
258 views

Should veil framework produce packed and obfuscated binaries which bypass virustotal?

I have been working with the veil framework to test an internal IDS system I have in place. I have used a public malware sample which produces an 8/53 hit score on Virustotal and run it through the ...
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0answers
26 views

How does MBAM run so quickly on Mac computer

How does the MBAM antimalware scanner for Mac OS devices run so quickly? I used it on a computer and it finished literally within two seconds; it was so fast that I thought for a second that I had ...
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1answer
37 views

How would I prove a windows executable is not a false positive? [closed]

I am could looking looking at method that involves decompilation or hex editing but I am hoping something simpler is available, although fully willing to go down that path. The scenario I am trying ...
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1answer
65 views

What to do if meterpreter get Caught? [closed]

Well we all have veil and its great really great But, When i run the payload the AV found that meterpreter is running from memory And then my payload is useless. How can i bypass that ? I tried ...
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1answer
48 views

Virus: Images get replaced on website [closed]

I have installed Windows 7 again on my laptop with Chrome as browser. The problem is that on different websites I visit, the actual images of the website get replaced with out of context images. It ...
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3answers
87 views

Are virus signatures different between antiviruses?

Are virus signatures different between antiviruses? For example, can a virus signature in Kaspersky differ from the signature associated to the same virus in Avast?
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4answers
11k views

Is it worth it to get paid anti-virus software?

With the rise in cybercrime, I am slightly worried about my computer security. I have been using open sourced anti-virus AVG for years and it has been doing well. Are anti-virus software like Norton ...
2
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1answer
59 views

Effectiveness of Secure Boot on kernel-mode rootkit detection

With so many new patches and updates, how effect is Secure Boot on detecting kernel-mode rootkits?
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34 views

Can I trust my antivirus' assessment of my computer as clean, if it previously found threats?

Yesterday, I went to my Recycle Bin (for the first time in a while) to purge a bunch of files I had sent there. When I clicked on the folder, my antivirus warned me of a trojan out of the blue. Later, ...
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2answers
68 views

Difference between antivirus and sandbox?

When reading about how antivirus and sandbox work, my understanding is that an AV scans a file to see whether it matches with known viruses signatures. Sandbox can be used to obtain the behaviors of a ...
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71 views

Should the risk of antivirus products be reconsidered in light of the TrendMicro critical bug report [closed]

Tavis Ormandy of Google has recently discovered a critical TrendMicro design flaw identified in this bug report - TrendMicro node.js HTTP server listening on localhost can execute commands. The bug ...
6
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1answer
154 views

Is rooting an Android phone to install an anti-virus firewall worth it?

Some Android anti-virus offer a firewall like Avast or Comodo anti-virus but you need to have a root access to use them. However rooting an Adroid phone is often presented as a security risk. So: ...
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1answer
70 views

Antivirus constantly detecting tmp files as threats

Recently my antivirus has been constantly detecting threats and it's always tmp files. I delete maybe 50 of these files each day. A few days ago it detected a trojan. Last week it detected many ...
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2answers
74 views

What is the difference between a HIDS/HIPS and an anti virus?

I have gone through what IDS/IPS's are. I understand the difference between a NIDS/NIPS and a HIDS/HIPS. But Host IDS and Host IPS sound like an antivirus software to me, is there a difference?
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1answer
46 views

Is it a good idea to use two antivirus? [duplicate]

I read a "no two anti-virus" rule and I also read about how you can use two anti-virus programs, but you need to do some configuration. Is it worth it to run two anti-virus programs on one system and ...
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6answers
33k views

Should I get an antivirus for Ubuntu?

Considering the recent thread regarding anti-virus for the Mac I wonder how many of the arguments put forth are relevant today to Linux systems, specifically Ubuntu. There are no known Ubuntu ...
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7answers
7k views

How should I select which antivirus software to install on my new laptop?

I'm in a bit of a dilemma here. I have bought a new laptop with no antivirus installed. I'm wondering how to choose an appropriate antivirus software to install.
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1answer
96 views

Using multiple AV's

As my computer is currently set up, I have 3 AV's: AVG (paid), Malwarebytes, and Spybot S&D. I think that each one of these serves a purpose: AVG gets your real malware - Trojans, Worms, etc. and ...
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1answer
39 views

Does AV Search Machine Code or Source?

When scanning a downloaded file, does AV search the malicious source code or assembly code to identify malicious code? Are there any online resources that give detailed analysis of how AV scans ...
5
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1answer
73 views

How Can Malware Hide Using Cryptography

How is it possible for malicious programs to hide using polymorphic cryptography when programs must be first compiled into machine code? You cannot cryptographically hide machine code, can you? Then ...
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3answers
101 views

Detect trojan/keylogger/virus on a businees network

On a business computer network with around 50 computers, there is a computer infected. We need to find that and remove it. I have been running the software below in the suspicious computers, but ...
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3answers
88 views

How to successfully prevent advance persistent threats

With the topic of advance persistent threats (APT) getting common nowadays, how do you successfully prevent such an attack in the workplace? Do you have to purchase expensive tools, such as those from ...
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2answers
97 views

Virus-total offline Alternatives [duplicate]

These days I am working on FUDing my own written backdoor, RATs, etc. what is the alternative offline version of virus-total, if I don't want AV companies gaining my virus signature?
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1answer
113 views

Memory Mapped Files and AV

Do you know if AVs scans non-persistent memory mapped file content in a Windows Environment ? (Or have the answers for some of the AV on the market) I would prefer, if possible, some real world ...
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1answer
32k views

does Avast SafeZone actually make a difference?

SafeZone is a feature in Avast Anti-Virus which is like a virtual machine that only has a web broswer. The benifit of this is that it can't be infected with spyware and isn't suseptible to keylogers. ...
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2answers
148 views

Where Does ClamAV Get Its Virus Signatures?

I see that ClamAV has virus definition files which are mostly hash codes in md5, sha1, and sha256 formats, which either look at the whole file or what are called PE sections of an executable file. Of ...
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4answers
2k views

Are anti-virus companies companies regularly committing software piracy?

As Mikko Hypponen highlighted in a recent tweet, anti-Virus companies collect and store both samples of malicious software and samples of legitimate software: This got me to thinking, what ...
2
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1answer
75 views

Linux antivirus and files bigger then 4GB

I wish to scan files that are bigger then 4GB. For example video files. I noticed many antivirus software are limited to a maximum of 4GB (ClamAV for example). So: Is there a antivirus software ...
27
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4answers
8k views

Is HTML5 vibrate feature a security vulnerability?

While surfing a news website on my mobile, I receive a virus infection alert warning that triggers my phone to vibrate incessantly. The alert looks like the following: I didn't expect my phone to ...
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1answer
49 views

If my antivirus caught suspicious .exe files transferring from a mac to my PC, am I safe from them?

I've been trying to help my mother in law to backup / upgrade her old Mac. In order to use online backup solutions, I've had to transfer her files to my Windows PC. As files were transferring, I saw a ...
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3answers
582 views

Should anti-virus detect metasploit payloads?

As part of a workstation pen test, I copy a simple metasploit payload onto the workstation, and try to run it. Usually this is blocked by anti-virus software. However, sometimes it isn't (I won't name ...
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3answers
58 views

Is there a more precise approach to generate signatures for ClamAV, than regex signatures?

Actually I generate signatures from libraries, to scan executables for beeing statically linked to that library. My actual approach is to read out the .text section and generate a byte sequence for ...
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1answer
61 views

Access to email without antivirus [duplicate]

I am doing a test where we want to asses whether an email with a benign virus in it, exits a network. I need a means to receive the test emails I am sending from inside the network, without any ...
3
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1answer
530 views

Does anti-virus/security software protect against NTFS ADS?

I know that NTFS has features called ADS which may be used to hide malware. So does antivirus/security software, such as Norton 360, protect against this type of attack?
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1answer
473 views

ClamAV Flagging application .swf files as malware

ClamAV scans on our application servers are identifying some of our legitimate Flex .swf files as malicious, specifically citing CVE-2015-5548 (specifically, "Swf.Exploit.CVE_2015_5548 FOUND"). ...
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8answers
206 views

Difference between virus and trojan?

To my current understanding: a virus is a program that does not self replicate and relies on the host file being spread, it has malicious intent. A trojan is a program that is run be deceiving the ...
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0answers
38 views

“Segmented” malware

I've been researching how anti-malware tools function and I feel like I'm missing something with heuristic analysis. What I've learned so far Anti-malware programs can use heuristic analysis and ...
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2answers
179 views

Is Linux getting less or more secure? [closed]

The famous so-called virus-and-hacker-free Mac is a thing of the past: As it gets more popular it gets more vulnerabilities. Will Linux be the same at some point in time? Is it getting less of more ...
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3answers
88 views

Wordpress: a Virus detection plugin is necessary?

Is a Virus detection plugin is necessary for WordPress nowadays? EDIT: I mean to prevent attacks and violations... for example i'm using this plugin: ...
4
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3answers
128 views

Best way to check if your browser is secure

There is a lot of Malware checking software which seems is just a virus. How can you check for sure that your Windows 8 computer is uninfected with virus and malware? Is malwarebytes enough, or ...
3
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2answers
204 views

Why Antivirus Detects Simple Java Program as Trojan?

Just now I was testing a very simple code in java when I noticed a strange thing.......... On Compiling the program My antivirus detected it as trojan and deleted the jar file....... Further it is not ...
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3answers
4k views

How to pass PCI DSS 2.0 anti-virus requirement (5.1) on Linux?

PCI DSS 2.0 Requirement 5.1 states: 5.1 Deploy anti-virus software on all systems commonly affected by malicious software (particularly personal computers and servers). This requirement ...
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1answer
77 views

Will Kaspersky or BitDefender work on Hyper-V? [closed]

In case if I decide to test them or just don't want install them on a physical machine. I mean usual versions of antiviruses, not specially designed for virtual machines. Also interesting if I can ...
14
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4answers
10k views

Does a webserver need an antivirus software installed?

In what cases does a webserver need an antivirus software installed? When it is not required? If it is required sometimes, what should be considered when choosing the right one to install? (In my ...
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4answers
197 views

Does it matter which platform a file is scanned on for malware?

Different operating systems use different file types and file systems. Does it make a difference to a virus scan which system it is being run on and what type of malware it's looking for? I ask ...
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5answers
37k views

What is the difference between antivirus and firewalls

I need a brief explanation about the differences between antiviruses and firewalls
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2answers
398 views

Is there a way to use VirusTotal.com offline?

I live at a place where we don't always always have internet. I wonder if there is something like VirusTotal but that could work without internet connection and sync when I have some wifi to update ...