Home Malware Programs Trojans Trojan.Win32.Cromex.a

Trojan.Win32.Cromex.a

Posted: May 30, 2012

Threat Metric

Threat Level: 9/10
Infected PCs: 37
First Seen: May 30, 2012
Last Seen: September 22, 2022
OS(es) Affected: Windows

Trojan.Win32.Cromex.a is a Trojan advertised as a key generator, or keygen for Steam games, specifically, Steam Keygen. Numerous YouTube profiles are used to spread the fake keygen. Visiting any of the three website addresses flashed on the particular YouTube clip, which is still live, leads to public portals where the supposed keygen, steam Game Key Generator.exe, can be downloaded. Once the file is executed, PC users will not see any visible activities on their desktops. In the background, however, steam Game Key Generator.exe installs 7.0.1428.crx, a Google Chrome extension file detected to be a Trojan spyware named Trojan.Win32.Cromex.a, that is hosted on theonlyone(dot)goodluckwith(dot)us. This .CRX file is then installed onto Chrome upon the PC user permission. Those PC users who aren’t aware of Chrome extensions, these are 'zipped bundle of files-HTML, CSS, JavaScript (JS), images, and anything else you need-that adds functionality to the Google Chrome browser', and you can view them in Tools > Extensions. This specific extension hides itself as the genuine browser plugin, WebRep, a website rating tool of security software company, AVAST Software. The person or group behind the fake plugin used such an approach to disguise the malicious activities of the file from unaware PC users. This bogus plugin runs two JS files, detected as Trojan.Js.Win32.Cromex.a, encompassed in itself, and named 'webProtection.js' and 'background, js'. Using 'webProtection.js', it looks out for numerous strings, which are notably associated with online games/gaming and email accounts, in domains the PC user is presently visiting.

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