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Mwb caught a riskware.heuristics...something

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Okay, I'm new here firstly. Second, I'm using a free version of MWB along with Norton security suite on my windows 10 pc.

I was just minding my own business watching youtube, when I get a notification from mwb saying my free monthly scan(didn't know that was a thing)detected a threat on my PC. I opened it and quarantined the threat--here's what it is(since I can't get the darn full name to show); 


I'm afraid to delete the file. Isn't services.dll like...important? And more importantly, is there MORE malware on my PC I'm not aware of?
Usually I'm completely careful on my pc--if I go to any unfamiliar sites, I use no script and firefox to do so and I always look up reviews on anything I download...then scan the file before I install. The only 'risky' thing I've done lately was install a knockoff vocaloid software that's been around for ages called UTAU. I see thousands of people using it with no complaints so I thought it'd be safe--I'm not sure if it has anything to do with mwb's detection, but it seems weird this happened the night I installed UTAU.

I really hope it's not a big ordeal :< I REALLY don't want to have to reinstall everything on my PC. So far, I haven't noticed anything weird happening--except for as I'm writing this the icon of a minimized tab on chrome blinked. But that could be nothing.

Any help would be appreciated. For right now, I'm going to scan my pc with ADWcleaner.

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I just figured out how to resize the quarantine window column. The name is RiskWare.HeuristicsReservedWordExploit. also, I'm using a slightly outdated mwb--3.5.1. Did a scan with ADWCleaner, and this was the result;

# -------------------------------
# Malwarebytes AdwCleaner
# -------------------------------
# Build:    09-25-2018
# Database: 2018-11-05.1 (Cloud)
# Support: https://www.malwarebytes.com/support
# -------------------------------
# Mode: Scan
# -------------------------------
# Start:    11-12-2018
# Duration: 00:03:33
# OS:       Windows 10 Home
# Scanned:  32052
# Detected: 2

***** [ Services ] *****

No malicious services found.

***** [ Folders ] *****

No malicious folders found.

***** [ Files ] *****

No malicious files found.

***** [ DLL ] *****

No malicious DLLs found.

***** [ WMI ] *****

No malicious WMI found.

***** [ Shortcuts ] *****

No malicious shortcuts found.

***** [ Tasks ] *****

No malicious tasks found.

***** [ Registry ] *****

No malicious registry entries found.

***** [ Chromium (and derivatives) ] *****

No malicious Chromium entries found.

***** [ Chromium URLs ] *****

PUP.Optional.Legacy             Ask
PUP.Optional.Legacy             AOL

***** [ Firefox (and derivatives) ] *****

No malicious Firefox entries found.

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Okay, I may have found something of interest. Actually, I DID download something else recently that might have caused this.

I read somewhere on these forums that the 'RiskWare.HeuristicsReservedWordExploit' name can sometimes be given to files that are not in their usual place, I think? Checking the folder where the 'infected' file was, I found these;

These are the only .dll files in my temp folder, and I'm 90% because of a certain thing I found with them I know what it's from.
About two nights ago I found the old download page from BBC.uk's site for some old, low-poly dinosaur game. I wanted to play it for nostalgia's sake, and downloaded it. Those are what the files are for, I believe. Anyways, the game never ended up working or even installing correctly...and instead tricked me into what I can only assume was the most ancient version of FRAPS(which I promptly uninstalled). I'm thinking maybe there was a file called 'services.dll' and maybe it was false flagged?

I don't know, fingers crossed though that it's not an actual virus :'^)

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  • Root Admin

Hello @breedrill and :welcome:

Let's go ahead and run some other scans as well as ones you've already run and let's see what we can find.

Please run the following steps and post back the logs as an attachment when ready.


  • If you're already running Malwarebytes 3 then open Malwarebytes and check for updates. Then click on the Scan tab and select Threat Scan and click on Start Scan button.
  • If you don't have Malwarebytes 3 installed yet please download it from here and install it.
  • Once installed then open Malwarebytes and check for updates. Then click on the Scan tab and select Threat Scan and click on Start Scan button.
  • Once the scan is completed click on the Export Summary button and save the file as a Text file to your desktop or other location you can find, and attach that log on your next reply.
  • If Malwarebytes won't run then please skip to the next step and let me know on your next reply.


Please download AdwCleaner by Malwarebytes and save the file to your Desktop.

  • Right-click on the program and select RunAsAdmin.jpg Run as Administrator to start the tool.
  • Accept the Terms of use.
  • Wait until the database is updated.
  • Click Scan Now.
  • When finished, please click Clean & Repair.
  • Your PC should reboot now if any items were found.
  • After reboot, a log file will be opened. Copy its content into your next reply.


RESTART THE COMPUTER Before running Step 3

Please download the Farbar Recovery Scan Tool and save it to your desktop.

Note: You need to run the version compatible with your system. You can check here if you're not sure if your computer is 32-bit or 64-bit

  • Double-click to run it. When the tool opens, click Yes to disclaimer.
  • Press the Scan button.
  • It will make a log (FRST.txt) in the same directory the tool is run. Please attach it to your reply.
  • The first time the tool is run, it also makes another log (Addition.txt). If you've, run the tool before you need to place a check mark here.
  • Please attach the Additions.txt log to your reply as well.





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  • 4 weeks later...
  • Root Admin

Due to the lack of feedback, this topic is closed to prevent others from posting here.

If you need this topic reopened, please send a Private Message to any one of the moderating team members. Please include a link to this topic with your request.

This applies only to the originator of this topic. Other members who need assistance please start your own topic in a new thread.



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