Here's some article on some spywares hovering the net and playing inside
your pc. You see, popular video codecs such as DivX codec 5.0 and up uses this
Gain_Trickler spyware and Kazaa has this Gator + other spywares embedded
in it's program.
You will find that you have these spywares on your pc if you scan your
computer with Ad-Aware.
If you're using kazaa, delete it and try morpheus or kazaa lite. It's better than
Foistware / Spyware - Gator, OfferCompanion, Trickler, GAIN
Update: As of April 2002, Gator has been implicated in a questionable practice some are calling 'drive-by-downloads'. In this scheme, a normal banner or popup ad will attempt to install software (executable code) on the user's PC. Depending on the browser's security settings, the software will either download silently and without any user action, or present an install dialogue. Novice users may choose 'Yes' thinking the browser is asking to download a legitimate page-display plugin.
Gator is a software product that can automatically fill in passwords and other form-elements on Web pages. But its main purpose is to load an advertising spyware module called OfferCompanion, which displays pop-up ads when visiting some Web sites. Gator boasts that since it's software is always running, it can spam users with 'Special Offers' and other ads anywhere they go--even competitors' sites--with remarkable targeting capabilities, since it can spy on what sites the user is visiting. Don't take my word for it, see what kind of abilities Gator boasts to potential advertisers.
Gator is confirmed spyware, according to Tribune Media Services (via SecurityNewPortal):
'Gator tracks the sites that users visit and forwards that data back to the company's servers. Gator sells the use of this information to advertisers who can purchase the opportunity to make ads pop up at certain moments, such as when specific words appear on a screen. It also lets companies launch a pop-up ad when users visit a competitor's Web site.'
According to SimplytheBest Spyware information:
Gator helps you to fill out forms and remember passwords. Gator targets consumers based on site visitation and/or historical behavior. Your personal information is stored on your computer in an encrypted file. Gator accesses this personal information on occasion, using your IP address to help diagnose. Gator provides aggregate statistics about its customers, traffic patterns, and related site information to third-party vendors. In order to provide this service, they collect information on your web usage.
According to this article (& discussion), Gator is also dynamically inserting ads on top of ads already on the page. They look and feel like the site's real banners, but place ads for things the actual Web site never intended--including ads for competitors' products and possibly even adult materials. Among other things, this 'steals' advertising revenue from the legitimate owner of that Web site, as their banner is inaccessible and covered up by the Gator ad. (The basic idea of this questionable technology is similar to ezula's TOPText.)
Gator recently sued the Internet Advertising Bureau for decrying their methods as unethical and deceptive, and potentially illegal. Gator is seeking monetary damages for the IAB's 'malicious disparagement', as well as a declaratory judgment deeming their methods legal and forbidding the IAB from bringing their own suit on behalf of members whose sites' ads are being poached.
Gator is the main software, which autocompletes Web forms (which is completely unnecessary for many MSIE users, since IE has included an AutoComplete feature since version 5.0).
This is the advertising spyware module. It is responsible for spying on your Web browsing habits, downloading and displaying pop-up ads, and transmitting (personal?) information to Gator.
Trickler (fsg.exe, fsg-ag.exe, fsg*.exe)
Trickler is an 'install stub', a small program that is installed with the application you really wanted. (Gator almost always appears on your system due to installing OTHER software, and not the installer available from Gator's website.) When installed, Trickler inserts a Run key in your Registry so that it is silently and automatically loaded every time you start your computer. Trickler runs hidden and very slowly downloads the rest of Gator/OfferCompanion onto your system. It is suggested that this 'trickling' activity is intended to slip under the user's radar, the steady, low usage of bandwidth going unnoticed.
While often named fsg.exe, Trickler can go under other similar names, such as fsg-ag.exe (installed with AudioGalaxy) or another name containing 'fsg' or 'trickler'.
GAIN (GMT.exe, CMESys.exe, GAIN_TRICKLER_*.EXE)
GAIN is short for Gator Advertising Information Network, and is the newest incarnation of the Gator spyware we all know and love. Gator describes this module here.
Fear is the mind killer!