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slovokia

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Everything posted by slovokia

  1. BTW procmon was not running during the last test and Panda was not installed.
  2. Updated MB, Disabled Ethernet interface, Ran scan. Objects Scanned: 389523 Threats Detected: 0 Threats Quarantined: 0 Time Elapsed: 35 min, 35 sec Will PM detailed logs. Most of the time Malwarebytes was only using a single core of my 4 core processor. The SSD utilization was low for much of the time as well. Clearly the process is CPU bound and is not making good use of multithreading to use more processor cores. I'd suggest instrumenting your code to log the following: How long does it take to read all the entries in a directory. How long does it take to do each read of a given file. How long does it take to scan the data once you have read it. How long are you blocking for network I/O. With better instrumentation you will not be guessing as to what the problem is - instead you will be able to zero in to the areas that are causing the problem. mbamnointwindefdisabled.txt
  3. O.K. not sure how soon I can get around to this - it may be a few days.
  4. I have PM'd the additional information to LiquidTension
  5. 5 minutes = 5.34 GB of procmon logs. Therefore the entire run will probably be on the order of 60GB.
  6. O.K. Cannot promise how quickly I will get this done since I am busy with other things.
  7. I am concerned with maintaining my privacy so I'll be examining the logs before posting anything more publicly here.
  8. I ran a Malwarebytes again with rootkit detection enabled after uninstalling Panda security. Windows Defender real time protection was disabled: Scan Date: 3/17/19 Scan Time: 10:39 PM Version: 3.7.1.2839 Components Version: 1.0.538 Update Package Version: 1.0.9726 Objects Scanned: 389135 Threats Detected: 0 Threats Quarantined: 0 Time Elapsed: 41 min, 30 sec Some improvement but still almost 4 times slower than on 2/3/2019. At this point I think the ball is in Malwarebytes court. If you want I am willing to run more instrumented code if that would help. freshmbamwrootkitpandauninstwdefenderoff.txt
  9. O.K. Opened the Malwarebytes Support Tool and ran Clean and then reinstalled. Got these results with Panda left on (this time rootkit scanning was not enabled): Scan Date: 3/17/19 Scan Time: 8:28 PM Version: 3.7.1.2839 Components Version: 1.0.538 Update Package Version: 1.0.9726 Objects Scanned: 384410 Threats Detected: 0 Threats Quarantined: 0 Time Elapsed: 44 min, 8 sec Tomorrow I might try removing Panda and seeing what happens. What might make sense is for Malwarebytes to instrument it's code so it would be easier to rule out some issues like: Is there a generic problem with file reading speed on the computer malwarebytes is running on? If nothing else you could print out this number in the log files - that way folks will be able to judge whether something lower down in their environment has changed. freshmbamnorootkitpandaon.txt
  10. With Panda Dome Antivirus disabled I get the following scan results: Scan Date: 3/17/19 Scan Time: 6:56 PM Version: 3.7.1.2839 Components Version: 1.0.538 Update Package Version: 1.0.9724 Objects Scanned: 390805 Threats Detected: 0 Threats Quarantined: 0 Time Elapsed: 53 min, 51 sec So it's looking like the Window 10 filesystem is the only remaining alternative option at this point unless we don't trust Panda AV when it claims it is disabled. MBlog2.txt
  11. Here is data on the random read performance of my SSD:
  12. As to my SSD: I can do a raw sequential read of the entire SSD at a constant rate of ~240 MB/sec via cygwin: $ dd if=/dev/sdb of=/dev/null bs=256K 953900+1 records in 953900+1 records out 250059350016 bytes (250 GB, 233 GiB) copied, 1034.11 s, 242 MB/s I'll try to run some random access tests next to see if anything is amiss. Assume the issue is slow speed when reading files the remaining variables are the windows 10 filesystem and Panda antivirus.
  13. Here are the Malwarebytes Support Tool logs: mbst-grab-results.zip
  14. An older scan on the same computer completed in 12 minutes. Scan Date: 2/3/19 Scan Time: 3:34 PM Version: 3.6.1.2711 Components Version: 1.0.508 Update Package Version: 1.0.9102 Objects Scanned: 391197 Threats Detected: 0 Threats Quarantined: 0 Time Elapsed: 12 min, 17 sec Now the same scan on the same computer takes 53 minutes: Scan Date: 3/17/19 Scan Time: 10:22 AM Version: 3.7.1.2839 Components Version: 1.0.538 Update Package Version: 1.0.9724 Objects Scanned: 390731 Threats Detected: 0 Threats Quarantined: 0 Time Elapsed: 53 min, 11 sec So your scan time has increased by more than a factor of 4. Attached are the exports of both logs. Does anyone do performance testing / validation on new releases? malwarebytesproblem.txt
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