Home Malware Programs Trojans Trojan.Script.Heuristic-js.iacgm


Posted: October 24, 2013

Threat Metric

Threat Level: 9/10
Infected PCs: 12
First Seen: October 24, 2013
Last Seen: May 22, 2023
OS(es) Affected: Windows

Trojan.Script.Heuristic-js.iacgm is a website-based PC threat that is part of drive-by-download attacks to install threats onto your computer – in many cases, by exploiting software vulnerabilities that let them do so without requiring your consent. The last confirmed Trojan.Script.Heuristic-js.iacgm attack has been especially newsworthy for being inadvertently served by a Web page owned by the FireEye PC security company – although Trojan.Script.Heuristic-js.iacgm's actual attack was hosted on a third-party advertisement rather than on the FireEye website. For now, any recent unprotected contact with FireEye-owned domains should be considered a potential brush with spyware-installing unreliable content, and SpywareRemove.com malware analysts encourage using good anti-malware products to protect your browser from Trojan.Script.Heuristic-js.iacgm or remove its payload after its attack.

When the People that are in Charge of Protecting Your Computer Manage the Opposite

Drive-by-downloads hosted at unsafe or compromised sites are one of the more favored methods of distributing high-level PC threats – since they don't require victims to consent to the installations and may benefit from a natural flow of traffic that results in exposure to the attacks. Trojan.Script.Heuristic-js.iacgm is one of the clearest examples of malware authors seeing a preexisting traffic base – in this case, the visitors of FireEye's careers website – and exploiting it.

Trojan.Script.Heuristic-js.iacgm and other PC threats related to its drive-by-download attack were hosted on a compromised advertisement network that, in turn, was loaded by this website. FireEye has since acted to remove Trojan.Script.Heuristic-js.iacgm and all related PC threats, although previously affected visitors to the site may remain compromised.

Current evidence suggests that this attack was a happy coincidence for the malware authors as part of a general advertisement network-based attack rather than an attempt to compromise FireEye specifically. Trojan.Script.Heuristic-js.iacgm, for its part, merely is a common type of risky script that is involved in redirects that force your browser to load compromised JavaScript. What ultimately is downloaded and installed through this attack still is under analysis, although members of the Reveton family of Police Trojans Trojans, as well as variants of Fareit (such as PSW.Win32.Fareit.acqv) or Trojan Zeus, appear to be the predominant possibilities.

The Shield Between Your Browser and a Problem Like Trojan.Script.Heuristic-js.iacgm

Even though FireEye has since remedied this latest Trojan.Script.Heuristic-js.iacgm outbreak, similar attacks are likely to continue being hosted through other websites with less diligent maintainers than the average PC security company's employee. SpywareRemove.com malware experts consider browser-based security procedures, such as disabling JavaScript and keeping your browser updated, to be important parts of blocking Trojan.Script.Heuristic-js.iacgm, which may attack your PC without any showmanship or symptoms.

The payloads currently associated with Trojan.Script.Heuristic-js.iacgm attacks are high-level PC threats that may display fraudulent police warnings, lock your desktop, block other programs or attempt to intercept confidential information to steal. Using competent anti-malware tools always is encouraged for removing the payloads of drive-by-download attacks, and this continues to be applicable to attacks related to Trojan.Script.Heuristic-js.iacgm.

Technical Details

Additional Information

The following URL's were detected: