Hot Take Kaspersky is overestimated, while Microsoft defender is underestimated

I have downloaded the latest 15 ps1 samples from MalwareBazaar; made two copies, each one in a separate folder.
Scanned one folder by Kaspersky free antivirus and the other by Microsoft defender.
Very often for new malware, detection is made by behavioural protection when the malware is launched, rather than signatures. So you really would need to launch the samples too, for it to be a valid test of what samples are missed. Of course this is something that should be done with proper care, so you don't infect your computer.
 
Very often for new malware, detection is made by behavioural protection when the malware is launched, rather than signatures. So you really would need to launch the samples too, for it to be a valid test of what samples are missed. Of course this is something that should be done with proper care, so you don't infect your computer.
That is true, but as I was not using VM, I could not launch the scripts.
It is merely signature-based detection.
 
Yes, you're right, I'll correct the "impossible" in my post. It's just that when I sometimes quote a domestic user, sometimes I compare myself and people who are well informed and have a certain knowledge like many members here on MT and that's not quite how it is.
Agree, and that's how I took it (my 100 points for your previous post).

It's very difficult for a home user to get infected these days, if not "impossible" even using MD. Unless they don't know what they're doing and go around the web clicking on everything they see, downloading pirated software, pirating games, disabling their antivirus and so on. Today, the biggest risk is for corporate users, not home users.
The percentage of people affected by malware is what percent world wide, compared to all of the PC's used world wide? We occasionally get members here looking for malware removal, and Bleeping Computer has had a reputation over the years of malware removal, so that would make sense as far as the number of people posting there. But the only "malware" problem I've had since the days of XP (using AV and Spyware tools) is what's happened in cooperate servers being hacked, and my personal information possibly being compromised from there (4 different companies). And as an aware user, that was a question I had, where do I have to go (other than a malware, phishing repository site) to get some of this malware?

 
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with respect do you think this kind of testings are standard? actually it shows nothing, do you think a million dollar company can not have some employees to just add public website malwares? and get good scores in tests like yours?! malware detection is different from the tests we do here , you need malware analysis knowledge, technical knowledge, programming etc , you need honeypots , sensors , dark web monitoring for new samples,cloud detection and behavior monitoring and a lot of other stuff to be able to have proper testing. many public website samples are dead samples or detected by behavior or cloud detection, when something like that is happening the companie analysts focus on the part of the web that people like us does not have access to and try to detect targeted attacks, not wasting their energy and resources on something that their multi layered program can detected.
 
with respect do you think this kind of testings are standard? actually it shows nothing, do you think a million dollar company can not have some employees to just add public website malwares? and get good scores in tests like yours?! malware detection is different from the tests we do here , you need malware analysis knowledge, technical knowledge, programming etc , you need honeypots , sensors , dark web monitoring for new samples,cloud detection and behavior monitoring and a lot of other stuff to be able to have proper testing. many public website samples are dead samples or detected by behavior or cloud detection, when something like that is happening the companie analysts focus on the part of the web that people like us does not have access to and try to detect targeted attacks, not wasting their energy and resources on something that their multi layered program can detected.
U have hit the nail on the head
 
with respect do you think this kind of testings are standard? actually it shows nothing, do you think a million dollar company can not have some employees to just add public website malwares? and get good scores in tests like yours?! malware detection is different from the tests we do here , you need malware analysis knowledge, technical knowledge, programming etc , you need honeypots , sensors , dark web monitoring for new samples,cloud detection and behavior monitoring and a lot of other stuff to be able to have proper testing. many public website samples are dead samples or detected by behavior or cloud detection, when something like that is happening the companie analysts focus on the part of the web that people like us does not have access to and try to detect targeted attacks, not wasting their energy and resources on something that their multi layered program can detected.
No, I do not.
 
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"Kaspersky is overestimated" - Only a touch of divine editing can fix this horror! 😊
For pre-execution protection, yes; both are equal.
Regarding post-execution protection, I do not know; need to launch samples to test.
But post-execution protection depends on the duration between launch and block; if is long enough, damage can not be reverted by blocking and deleting the malware.
I prefer to rely on pre-execution protection.
 
and the missed samples by K and MD were also missed by other AVs; for example sample 4 was missed by K, but detected by MD, and ESET only, sample 9 was missed by MD, but detected by K and B, sample 11 was missed by both K and MD and also by ESET and B, but detected by Avast-AVG.

The only guarantee of safety is your way of thinking and behavior, no matter what security suite installed on your PC.
What was the detection name was is heur? Did you execute it in a sandbox to see if it works? Although ESET is not known of adding non working malware to their definitions.

Do you have a copy of the missed malware that ESET detected. ?
I would love to examine it.
 
15 pieces of malware, whether PS1 or other, is too little, which is why I try to make packs with several pieces of malware (like the hundred). That's a fact.

Secondly, Kaspersky and MS Defender don't work in the same way, nor do they have the same shields.
Especially as PS1 malware, C&C servers die quite quickly, very often hit by the deactivation of servers by the host (called a TakeDown), so not reliable enough to test.

Yes, MS Defender must have Web protection, but it also manages to block attacks, like Kaspersky ;) (called AMSI)
 
What was the detection name was is heur? Did you execute it in a sandbox to see if it works? Although ESET is not known of adding non working malware to their definitions.

Do you have a copy of the missed malware that ESET detected. ?
I would love to examine it.
I'm not a malware hunter, or even related to the tech field.
As stated clearly, it just testing of signature-based detection by scan; I have no VM to launch samples to evaluate behavioral protection and post-execution detection and containment.
All the samples were deleted after testing, certainly I would like to keep snakes inside my room 😐
 
15 pieces of malware, whether PS1 or other, is too little, which is why I try to make packs with several pieces of malware (like the hundred). That's a fact.

Secondly, Kaspersky and MS Defender don't work in the same way, nor do they have the same shields.
Especially as PS1 malware, C&C servers die quite quickly, very often hit by the deactivation of servers by the host (called a TakeDown), so not reliable enough to test.

Yes, MS Defender must have Web protection, but it also manages to block attacks, like Kaspersky ;) (called AMSI)
The number of samples is limited because getting more samples from MB means it will be older ones; I wanted to test the most recent just added to their database during the same day to test.

I did not evaluate any shields of both, only on-demand scanner and the efficacy of their signatures combined with their cloud-backend.

K has the best behavioral protection; however, it failed me once when detected a piece of what looked ligitimate software as ransomware but it was late after initiation of damage. In addition, it has some FPs from time to time; it is not that superior.
 
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