Title: Ryknos

Type: Backdoors

Remove Ryknos. Removal instructions

Severity scale:

(75 / 100)

Ryknos is an IRC-controlled backdoor that provides the attacker with unauthorized remote access to a compromised computer. The intruder can download and execute arbitrary files, retrieve system and network information, send messages to specified remote hosts. The threat silently downloads from the Internet and installs another backdoor called Looksky.b. Ryknos uses the infamous First4DRM rootkit to cloak itself in the system. It is able to bypass Windows Firewall. The backdoor attempts to automatically run on every Windows startup, but fails.

Ryknos properties:
• Allows remote user connection
• Connects itself to the internet
• Hides from the user
• Stays resident in background

Automatic Ryknos removal:

remover for Ryknos

SpyHunter is recommended remover to uninstall Ryknos. 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 Ryknos using SpyHunter please report this to us.

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STOPzilla

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We are testing STOPzilla's efficiency at removing Ryknos (2005-11-11 05:14:51)

Malwarebytes Anti Malware

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We are testing Malwarebytes Anti Malware's efficiency at removing Ryknos (2005-11-11 05:14:51)

Spyware Doctor

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We are testing Spyware Doctor's efficiency at removing Ryknos (2005-11-11 05:14:51)

XoftSpySE Anti Spyware

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Ryknos manual removal:

FORUM:
Discuss Ryknos in
spyware removal forum

Kill processes:
$sys$drv.exe, bk.exe

HELP:
how to kill malicious processes

Delete registry values:
HKEY_CURRENT_USER\[long string of random characters]\$sys$drv=$sys$drv.exe

HELP:
how to remove registry entries

Delete files:
$sys$drv.exe, bk.exe

HELP:
how to remove harmful files

Misc:
The threat can infect any system except for those, where First4DRM is already installed from Sony BMG content-protected music CDs.

The bk.exe file installs the Looksky.b backdoor.

The $sys$drv.exe file can be found in default system directory, which is one of the following: C:\Windows\System, C:\Windows\System32, C:\Winnt\System32.

Information added: 2005-11-11 02:37:36
Information updated: 2005-11-11 02:37:36

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