Reddit Is Malwarebytes Still Good

Posted onby admin
  1. Reddit Is Malwarebytes Still Good For Mac
  2. Malwarebytes Download Reddit
  3. Is Malwarebytes Free Reddit

Well, actually it isn’t the genuine WinDirStat but a trojanized version posing as WinDirStat and it’s masquerading under the disguise of the good Unicode version of windirstat.exe which is contained in the installer. So it’s named that as well.

Apr 19, 2021 Malwarebytes Premium now functions as a full-blown antivirus, not just an assistant to your main antivirus. It earns excellent scores in our hands-on tests and its scores with independent testing. Overall, Malwarebytes is a good antivirus, offering some of the best protection out there (making it onto the list of the best antiviruses of 2021). You can get the free version after a 14-day trial of the premium version, and there’s a 60-day money-back guarantee to help you decide if it’s the right antivirus for you.

Need

Now, the report I got from a WinDirStat user from Sweden (thanks again!) was that MalwareBytes had detected WDS once again. I assumed false positive and it turned out that it was at least for the particular file that the Swedish user had (SHA1: 26e14a532e1e050eb20755a0b7a5fea99dd80588)1 – which was the genuine file from the genuine version 1.1.2 installer. That is the installer with the following two cryptographic hashes2:

  • MD5: 3abf1c149873e25d4e266225fbf37cbf
  • SHA1: 6fa92dd2ca691c11dfbfc0a239e34369897a7fab

We’ve had this before, but this time it was a slightly different case.

Malwarebytes

I contacted Doug from MalwareBytes. We had been in touch some time before. So I got a contact for the malware research at MalwareBytes and was able to inquire about the file. It turned out that the file aforementioned Swedish user had inquired about wasn’t under detection, but another file with the MD5 hash a84aad50293bf5c49fc465797b5afdad. Now I didn’t have that file in my release archive so I asked for the file3 and was then able to look at the actual trojanized file. And what struck me was that all external traits shown by this file matched closely the Unicode build from the 1.1.2 installer. The size matched, the timestamp in the PE header matched, just some things like the sections and a whole lot of code or data had been changed in the middle of the file.

So I loaded the genuine file into IDA Pro and the entry point looked like this:

Reddit Is Malwarebytes Still Good For Mac

and when I did the same on the trojanized file it looked like this:

Reddit is malwarebytes still good today

Holy moly, Batman! Someone actually trojanized WinDirStat and it looks like EPO4 just from a brief look.

Again, this file is namedwindirstat.exe and to the naked eye it looks like the Unicode build from the 1.1.2 installer, but in actuality this is a trojanized version of the genuine file. Now I don’t have the time to investigate into what exactly this thing is doing, but it bears all the hallmarks of malware and therefore from my perspective that file isn’t a false positive.

Conclusions

If you download files. check that their hashes match what is expected. Future releases of WDS will be signed with an Authenticode certificate, so it will also make it harder to trojanize WinDirStat.

Good

I checked last night and at least the downloads from SourceForge.net and DownloadBestSoft were genuine. No danger there. Still: you are encouraged to double or triple check! And keep in mind that MD5 is broken, so never ever rely on MD5 alone.

// Oliver

the clean files are:

MD5:

Reddit
  • 3abf1c149873e25d4e266225fbf37cbf *windirstat1_1_2_setup.exe
  • 3f3dd4476249ae664e3365e5bb651601 *release/windirstat.exe
  • 24cd9a82fcfc658dd3ae7ba25c958ffb *urelease/windirstat.exe

SHA1:

Malwarebytes Download Reddit

  • 6fa92dd2ca691c11dfbfc0a239e34369897a7fab *windirstat1_1_2_setup.exe
  • 752e1687d58de3bef927d9ad24c0ed3da3754e17 *release/windirstat.exe
  • 26e14a532e1e050eb20755a0b7a5fea99dd80588 *urelease/windirstat.exe

Is Malwarebytes Free Reddit

  1. that false positive has been fixed meanwhile. [↩]
  2. keep in mind that MD5 has been broken, so you should never rely on it alone anyway. It is possible to forge binaries that match the MD5 hash of another binary as recent government-sanctioned malware has shown. [↩]
  3. Usually you won’t get a file that is deemed malicious from any anti-malware company, but since I work in the AV industry as well and had contact with Doug before, I had the credentials. [↩]
  4. Entry Point Obfuscation [↩]