Update91.com

Update91.com is a malicious website that distributes malware of various types by displaying their download links formatted as fake Adobe Flash updates. Although visiting Update91.com, by itself, is an unlikely happenstance, Update91.com may be displayed through advertising networks and fake media-streaming websites that otherwise include some legitimate content alongside the fraudulent links to Update91.com. Like all software-updating frauds reliant on simple misinformation, Update91.com easily is shut down by PC users being aware of the dangers of getting updates from non-official websites. If you've installed an 'update' from Update91.com, SpywareRemove.com malware researchers strongly urge you to use anti-malware software to disinfect your computer immediately. The payloads being distributed Update91.com still are under analysis, but have the potential to include high-level PC threats such as banking Trojans, rootkits and spyware.

When the Good Name of Software is Used for Very Bad Purposes

Update91.com enjoys one of the most common online scams known to SpywareRemove.com malware experts to date: that of the fake Flash update. Because Flash, like Java, is used for a multitude of websites and often requires new updates, any convincing-looking Flash update may tempt you into installing it without asking any questions. The criminals in charge of Update91.com also have taken the time to craft Update91.com into looking exactly like a legitimate update from Adobe Flash – at least, as much as is possible for them to do through an unofficial website. Upon being loaded, Update91.com always displays a fake update alert that indicates that your version of Flash is outdated, no matter what version of Flash you have (or even whether or not you have Flash at all).

Installing Update91.com's supposed update doesn't do anything more than infect your computer. SpywareRemove.com malware experts currently are unable to acquire extensive samples of malware installed through Update91.com, but note that such attacks often are used for distributing high-level threats that can endanger the privacy and security of your PC to the greatest possible degree.

Instead of attempting to acquire any direct traffic to itself, Update91.com usually is displayed through pop-up windows and embedded banners in other websites with varying degrees of malicious or unsafe content. You should be particularly cautious about possible Update91.com attacks on disreputable sites that involve streaming media content.

Turning Update91.com into an Update of Zero

Besides a basic level of paranoia about which sites you visit, SpywareRemove.com malware experts also are able to recommend other defenses against possible attacks from Update91.com:

• Disabling Flash, JavaScript and other exploitable Web features will let you disable the windows through which Update91.com launches. You then can selectively re-enable these features for any sites that are trustworthy.
• Avoiding Flash updates from any sites other than the official Adobe one is, naturally, the simplest way to keep an Update91.com attack from infecting your PC. It also is a tactic that SpywareRemove.com malware researchers recommend in general for most brands of software that have official download sources.
• You also may wish to invest in at least one security program that includes Web-browsing protection in its set of features. Many such programs can block malicious URLs like Update91.com automatically.

Update91.com has not been found to use browser exploits to force its malware payloads onto any vulnerable computers. Therefore, only in cases where you install an Update91.com 'update' deliberately should you consider your computer to be infected. In that scenario, a general anti-malware scan to detect all PC threats and remove them ASAP is, of course, encouraged.