Although Microsoft released an emergency out-of-band patch on October 23, 2008 to close the vulnerability, Researchers believe that these were decisive factors in allowing the virus to propagate quickly.Intramar, the French Navy computer network, was infected with Conficker on 15 January 2009.Although almost all of the advanced malware techniques used by Conficker have seen past use or are well known to researchers, the virus' combined use of so many has made it unusually difficult to eradicate.
The use of USB flash drives was banned, as this was believed to be the vector for the initial infection.
A memo from the Director of the UK Parliamentary ICT service informed the users of the House of Commons on 24 March 2009 that it had been infected with the virus.
Prepare: CLI Install: Command Line Install Options are detailed at Install using the command line at Citrix Docs.
The Citrix Telemetry Service seems to cause problems.
Configurable Registry keys are located at HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\Desktop Helper.
Each value is detailed in the accompanying Word document.
The first variant of Conficker, discovered in early November 2008, propagated through the Internet by exploiting a vulnerability in a network service (MS08-067) on Windows 2000, Windows XP, Windows Vista, Windows Server 2003, Windows Server 2008, and Windows Server 2008 R2 Beta.
While Windows 7 may have been affected by this vulnerability, the Windows 7 Beta was not publicly available until January 2009.
The memo, which was subsequently leaked, called for users to avoid connecting any unauthorised equipment to the network.
In January 2010, the Greater Manchester Police computer network was infected, leading to its disconnection for three days from the Police National Computer as a precautionary measure; during that time, officers had to ask other forces to run routine checks on vehicles and people.
The latest Cumulative Update for 7.15 is CU1 (7.15.1000).