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Microsoft Security Intelligence
77 entries found. Displaying page 1 of 4.
Updated on May 30, 2014
Alert level: severe
Updated on Apr 11, 2011
Backdoor:Win32/Yonsole.A is a trojan that allows unauthorized access and control of an affected computer, and connects to a remote host for instructions.
Also detected as: Trojan:Win32/Malagent(Microsoft)
Alert level: severe
Updated on May 02, 2016

Windows Defender detects and removes this threat.

This threat is a trojan which tries to do one or all of the following - download and install other malware; use your computer for click-fraud; record your keystrokes and the sites you visit; send information about your PC, including user names and browsing history, to a remote malicious hacker; or give a remote malicious hacker access to your PC.

Due to the generic nature of this detection, we can only provide general information about it.

Find out ways that malware can get on your PC.  

Alert level: severe
Updated on Feb 01, 2011
Alert level: severe
Updated on Jan 09, 2009
Alert level: severe
Updated on May 29, 2019
Alert level: severe
Updated on Jan 24, 2020
Alert level: severe
Updated on Mar 27, 2021
Alert level: severe
Updated on Jan 08, 2022
Alert level: severe
Updated on Nov 18, 2022
Alert level: severe
Updated on Jan 16, 2023
Alert level: severe
Updated on Jan 18, 2023
Alert level: severe
Updated on Mar 01, 2021
Alert level: severe
Updated on Mar 16, 2021
Alert level: severe
Updated on Sep 23, 2023
Alert level: severe
Updated on Sep 23, 2023
Alert level: severe
Updated on Dec 12, 2023
Alert level: severe
Updated on Apr 20, 2024
Alert level: severe
Updated on Jan 25, 2024
Alert level: severe
Updated on Dec 30, 2023
Alert level: severe