Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


Internet Extremely Slow - A Virus?

  • Please log in to reply
1 reply to this topic

#1 GhostfaceKillah


  • Members
  • 10 posts
  • Local time:04:32 AM

Posted 18 October 2014 - 01:05 AM

Over the past 2 days, my internet speed has decreased significantly. I used to have no issues with my ping and internet speed. Now, youtube and online games have been rendered on playable. When using the command prompt to ping websites, the average ping is about 400 ms, ranging anywhere from 250 ms up to 700 ms. My download speed has been reduced from it's normal ~125 kb/sec to 10kb/ sec.

This slow internet speed has not just infected this computer, but all computers in my network. I have tried reseating my modem and my router, but neither of these methods worked.

I scanned my computer using both MSE and Malewarebytes, but neither turned up anything. However, upon examining the detected items history in MSE, I discovered that a Trojan horse, JS/Krypterade.A, had been detected on my PC 24 hours ago. There was no warning of this last night; no notifications popped up. This Trojan horse is supposed to be ransomware, but my PC has never been locked up and money has never been solicited from me via fake threats. Yet, task manager is showing multiple dllhost.exe *32 processes (up to 10) that are consistent with this virus. Network iControl is showing that this dllhost.exe is taking up around 100KBps of bandwith. I am beginning to suspect that I have a virus on this PC.

Due to the fact that downloads are excruciatingly slow and I don't have any other anti-virus software on my hands, is there anything else I can do before downloading new software? If it does come down to me being forced to download something, which programs should I get? Thanks in advance.


EDIT: I would like to add that Internet Explorer has stopped saving my information when I ask for websites to remember my log-in information. Furthermore, every time I restart Internet Explorer, file downloads are set to disable. Every single file I download has to be downloaded twice because after the first download, Internet Explorer states that the file was not downloaded (it works the second time though.)

Edited by GhostfaceKillah, 18 October 2014 - 02:24 AM.

BC AdBot (Login to Remove)


#2 boopme


    To Insanity and Beyond

  • Global Moderator
  • 73,490 posts
  • Gender:Male
  • Location:NJ USA
  • Local time:07:32 AM

Posted 18 October 2014 - 09:51 AM

With this infection it is best to get a deeper look first before doing anything else.

Please follow this Preparation Guide, do steps 6,7 and 8 and post in a new topic.
Let me know if all went well.

If running win8 use RSIT instead of DDS.
If you cannot get DDS to work, please try this instead.

Please download RSIT by random/random from the link provided for your operating system and save it to your desktop.This tool needs to run while the computer is connected to the Internet. If you get a warning from your firewall or other security programs regarding RSIT attempting to contact the Internet, please allow the connection.
  • Close all applications and windows so that you have nothing open and are at your Desktop.
  • Double-click on RSIT.exe to start the program.
    Vista/Windows 7 users right-click and select Run As Administrator.
  • Read the disclaimer and click Continue.
  • When the scan is complete, a text file named log.txt will automatically open in Notepad.
  • Another text file named info.txt will open minimized.
  • Save the log files to your desktop and copy/paste the contents of log.txt by highlighting everything and pressing Ctrl+C.
  • After highlighting, right-click, choose Copy and then paste the contents into a new topic in the Virus, Trojan, Spyware, and Malware Removal Logs forum, NOT here.
  • Copies of both log files are automatically saved in the C:\RSIT folder which the tool creates during the scan.
Important: Be sure to mention that you tried to follow the Prep Guide but were unable to get DDS to run.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users