Trojan.Win32.Yakes.cngh

Posted: March 15, 2013

Threat Metric

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The following fields listed on the Threat Meter containing a specific value, are explained in detail below:

Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.

Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.

Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.

Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.

% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.

Threat Level:	9/10
Infected PCs:	9

First Seen:	March 15, 2013
Last Seen:	August 13, 2020
OS(es) Affected:	Windows

Trojan.Win32.Yakes.cngh is a Trojan that's distributed predominantly via e-mail spam for Germany and neighboring countries. PDF exploits embedded in the attached file will install Trojan.Win32.Yakes.cngh automatically, and since Trojan.Win32.Yakes.cngh's e-mails are disguised as business invoices, victims may infect their own computers without understanding that an attack has taken place. Trojan.Win32.Yakes.cngh includes several generalized functions that can disable your computer's security features, spy on your activities or conceal itself from detection. SpywareRemove.com malware researchers heartily recommend deleting Trojan.Win32.Yakes.cngh with the most powerful anti-malware products available (once you've realized that Trojan.Win32.Yakes.cngh is on your PC in the first place).

When an E-mail's 'Urgency' Doesn't Line Up with Its Contents

So far, Trojan.Win32.Yakes.cngh has been distributed via multiple spam e-mail campaigns. Due to the similarities between these campaigns – using very similar message formats, as well as attack techniques – SpywareRemove.com malware research team has speculated that they're by the same team, which is suggestive of even more Trojan.Win32.Yakes.cngh attacks in the future. E-mails distributing Trojan.Win32.Yakes.cngh use the semi-plausible excuse of carrying business notifications in enclosed PDF files. However, anyone who's familiar with PDFs will be aware that the format that was given to this is one of the most utilized for use in drive-by-download attacks.

No different from similar spam-based attacks, this file will, once launched, exploit a PDF-specific vulnerability that's hidden underneath two separate layers of embedded JavaScript code. The following programs are susceptible to this attack: Adobe Reader/Acrobat 8.x prior to 8.2.1, as well as 9.x prior to 9.3.1. The final phase of the drive-by-download installs a fake Adobe update that actually is Trojan.Win32.Yakes.cngh. Trojan.Win32.Yakes.cngh may be detected as a variant of Artemis or by other labels that include Troj/VBInj-EG, Trojan:Win32/Matsnu and Win32/Trustezeb.C.

Why You Don't Want to Hear What this So-Called Invoice Has to Say

Trojan.Win32.Yakes.cngh includes several basic attack functions that make it difficult to determine its specific purpose – whether Trojan.Win32.Yakes.cngh is used primarily to allow criminals to control your computer directly, to install other malware or to steal personal information. However, SpywareRemove.com malware experts have confirmed some of Trojan.Win32.Yakes.cngh's major functions below:

Disabling basic security applications such as Task Manager and Registry Editor.
Ignoring your firewall to make contact with a remote server. This server may be used to transfer stolen information, download other malware, issue commands or update Trojan.Win32.Yakes.cngh.
Disabling Safe Mode.
Taking screenshots of any applications that currently are running on your PC.
Delete files on your PC without your consent.

Given its extensive repertoire of damaging attacks, Trojan.Win32.Yakes.cngh should be removed as soon as possible after the original infection. SpywareRemove.com malware experts recommend using anti-malware products for removing Trojan.Win32.Yakes.cngh, but if Trojan.Win32.Yakes.cngh blocks these programs, you may need to use other security methods to bypass Trojan.Win32.Yakes.cngh beforehand.

Naturally, paying attention to suspicious e-mails and deleting them will allow you to eschew needing to deal with a Trojan.Win32.Yakes.cngh infection at all.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:

vlsnekunrn.pre

File name: vlsnekunrn.pre
Mime Type: unknown/pre
Group: Malware file