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Published Feb 16, 2015
|
Updated Sep 15, 2017
TrojanDownloader:MSIL/Downcoin.B
What to do now
Use the following free Microsoft software to detect and remove this threat:
You should also run a full scan. A full scan might find hidden malware.
Get more help
You can also see our advanced troubleshooting page for more help.
If you’re using Windows XP , see our Windows XP end of support page .
Technical information
Threat behavior
Installation
This threat can create files on your PC, including:
It modifies the registry so that it runs each time you start your PC. For example:
In subkey:
HKCU\software\microsoft\windows\currentversion\run Sets value: "
winsrv.exe "
With data: "
%APPDATA%\winsrv.exe "
Payload
Downloads malware or unwanted software
This threat can download other malware and unwanted software onto your PC.
Connects to a remote host
We have seen this threat connect to a remote host, including:
filehostonline.com using port 80
Malware can connect to a remote host to do any of the following:
Check for an Internet connection
Download and run files (including updates or other malware)
We have seen this threat access online content, including:
This malware description was published using automated analysis of file SHA1 97f5b3534c3a88d87f1ede3dd730ebb9b1185d17 .
Prevention
Symptoms
The following can indicate that you have this threat on your PC:
You see registry modifications such as:
In subkey: HKCU\software\microsoft\windows\currentversion\run Sets value: "winsrv.exe " With data: "%APPDATA%\winsrv.exe "
Debug Version = 1.0.0.0;