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Lenovo ships laptops with Superfish adware

1 min read

This thread's last reply is from February 21, 2015, 5:18 PM UTC. Software, malware, and removal-tool advice below may be out of date — treat specific steps and download links with caution.

Courtesy of Quietman7, Microsoft MVP - Consumer Security 2007-2015

"quietman7" wrote:
Lenovo laptops ship with adware that hijacks HTTPS connections

How Lenovo's Superfish 'Malware' Works And What You Can Do To Kill It

To find out if youre affected, locate Windows list of trusted certificates by opening up the Control Panel and searching for certificates. This will bring up Administrative Tools and a manage computer certificates option. Click on the Trusted Root Certification Authorities option and then Certificates. This will bring up a list of certificates. If you see one with Superfish Inc attached to it, you may be vulnerable.

Even users who do find it, uninstalling the program does not get rid of the problem, as that will not remove the certificate. So for anyone concerned that Superfish is still swimming around their computer, the best option might be to back everything up on their systems and install a new operating system. It might be a good excuse to upgrade to a more secure OS anyway.


How to paint yourself into a corner (Lenovo edition)

The problem here is not just that this is a lousy idea. Its that Lenovo used the same certificate on every single Laptop it shipped with Superfish. And since the proxy software also requires the corresponding private key to decrypt and modify your web sessions, that private key was also shipped on every laptop. It took all of a day for a number of researchers to find that key and turn themselves into Lenovo-eating interception proxies. This sucks for Lenovo users.


Superfish CA test

Superfish removal guide
See also ... https://www.us-cert.gov/ncas/alerts/TA15-051A
List of affected products and Lenovo's removal tools.

Lenovo Security Advisory Affected Products

Lenovo automatic Superfish removal tool

At the bottom of Lenovo's removal tool page:
NOTE: There are benign additional files and registry entries which will remain after this procedure. Although they are harmless, Lenovo will soon be releasing a utility to remove them which will be posted here as well.