Remove PSN. Removal instructions

Severity scale:

(34 / 100)

PSN is a typical browser hijacker that changes Internet Explorer default home and search pages and modifies web browser security settings. The parasite must be manually installed. It automatically runs on every Windows startup and can update itself.

PSN properties:
• Changes browser settings
• Connects itself to the internet
• Hides from the user
• Stays resident in background

Automatic PSN removal:

remover for PSN

SpyHunter is recommended remover to uninstall PSN. You should confirm using free trial that it detects current version of parasite.

Note: Manual assistance required means that one or all of removers were unable to remove parasite without some manual intervention, please read manul removal instructions below.

If you failed to remove PSN using SpyHunter please report this to us.

We might be affiliated with any product we recommend on the site. Full disclosure in our Agreement of Use.

STOPzilla

download | review

We are testing STOPzilla's efficiency at removing PSN (2006-06-02 06:43:50)

Malwarebytes Anti Malware

download | review

We are testing Malwarebytes Anti Malware's efficiency at removing PSN (2006-06-02 06:43:50)

Spyware Doctor

download | review | tutorial

We are testing Spyware Doctor's efficiency at removing PSN (2006-06-02 06:43:50)

XoftSpySE Anti Spyware

download | review

PSN manual removal:

FORUM:
Discuss PSN in
spyware removal forum

Kill processes:
msupdate.exe

HELP:
how to kill malicious processes

Delete registry values:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Updates=%System%\msupdate.exe
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Search Page=[site address]
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Search Bar=[site address]
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchURL\SearchURL=[site address]
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Search\CustomizeSearch=[site address]
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Search\SearchAssistant=[site address]
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\SafeSites\auto.search.msn.com
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\SafeSites\auto.search.psn.cn
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\SafeSites\ie.search.psn.cn
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\SafeSites\search.msn.com
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\SafeSites\search.psn.cn

HELP:
how to remove registry entries

Delete files:
msupdate.exe

HELP:
how to remove harmful files

Misc:
[site address] is an adress of a web page on the search.psn.cn or ie.search.psn.cn domains.

File msupdate.exe can be found in the default system directory, which can be one of the following:
C:\Windows\System, C:\Windows\System32 or C:\Winnt\System32.

Information added: 2005-08-31 05:47:21
Information updated: 2006-06-02 04:06:35

Additional resources related to PSN:

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more resources

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