Trojan.Mayachok.1

Posted: July 12, 2012

Threat Metric

The Threat Meter is a malware assessment that SpywareRemove.com's research team is able to give every identifiable malware threat. Our Threat Meter includes several criteria based off of specific malware threats to value their severity, reach and volume. The Threat Meter is able to give you a numerical breakdown of each threat's initial Threat Level, Detection Count, Volume Count, Trend Path and Percentage Impact. The overall ranking of each threat in the Threat Meter is a basic breakdown of how all threats are ranked within our own extensive malware database. The scoring for each specific malware threat can be easily compared to other emerging threats to draw a contrast in its particular severity. The Threat Meter is a useful tool in the endeavor of seeking a solution to remove a threat or pursue additional analytical research for all types of computer users.

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:	31

First Seen:	July 12, 2012
OS(es) Affected:	Windows

Trojan.Mayachok.1 is a ransomware Trojan that uses fraudulent pretenses to get you to send an SMS message to a mobile service scam. Although Trojan.Mayachok.1 has been observed primarily in Russian webspace, PCs in other areas are also likely to be vulnerable to Trojan.Mayachok.1, which is identifiable by its fake website alerts that include traffic overload warnings and Trojan.Mayachok.1's characteristic SMS-related 'feature.' Since your Internet connectivity may be disabled, or various websites may be blocked until Trojan.Mayachok.1 is deactivated and removed, SpywareRemove.com malware researchers encourage you to disable Trojan.Mayachok.1 by any method that's necessary before you delete Trojan.Mayachok.1 with a qualified anti-malware product.

Trojan.Mayachok.1: Choking the Money Out of Your Phone on a Monthly Basis

Trojan.Mayachok.1 can be considered either a browser hijacker or a ransomware Trojan, since its website hijacks are always used to promote its particular spin on common ransomware-based strategies for stealing money. Trojan.Mayachok.1 infections are often only noticeable after unusual warning messages appear on sites such as my.mail.ru, youtube.com, vk.com, vkontakte.ru and odnoklassniki.ru. By preventing you from using these sites under the false premise of traffic-related server overloads, Trojan.Mayachok.1 encourages you to use a so-called 'alternate' means of connecting to them once SMS authentication has been acquired.

Victims of Trojan.Mayachok.1 attacks who actually bother to send the SMS message to Trojan.Mayachok.1's proffered phone number will be unwittingly signed up for a mobile service that extracts a fee automatically and on a monthly basis. SpywareRemove.com malware experts warn that these charges, as part of the set of features for mobile phones, will continue even after Trojan.Mayachok.1 is removed from your PC. Naturally, reputable ISPs and websites will never make offers that could be used to extort you unwittingly, such as requesting SMS messages to arbitrary numbers, and Trojan.Mayachok.1's alerts can be discarded as fraudulent in all circumstances.

Lopping Off Every Tentacle That Trojan.Mayachok.1 Sinks Into Your RAM

Trojan.Mayachok.1 may also be noted by its minor but pervasive changes to your RAM usage. By default, Trojan.Mayachok.1 is loaded into the memory of all processes to conceal its attacks and existence on your PC. However, SpywareRemove.com malware researchers stress that this doesn't indicate that Trojan.Mayachok.1 has file-infection capabilities a la viruses; as far as latest reports are concerned, Trojan.Mayachok.1 is a lone DLL file without any extant self-propagation capabilities. Nonetheless, since Trojan.Mayachok.1 was seen infecting many PCs in 2011, it appears likely that related PC threats are capable of installing Trojan.Mayachok.1 through browser exploits or other methods with a wide range of distribution.

You should attempt to disable Trojan.Mayachok.1 from memory before you try to remove Trojan.Mayachok.1 with your choice of anti-malware program. Tactics that can be useful for this purpose include booting from a USB drive, using a dual-boot to a secondary OS or simply booting in Safe Mode. Trojan.Mayachok.1 is also identified by aliases that include KDV.169924, Trojan.win32.zapchast.feh, Trojan: Win32/Vundo.OD, Trojan.win32.ddox.ci, Trojan.Win32.Mondere and Trojan.Win32.Cidox.

Aliases

Trj/OCJ.A [Panda]W32/SPNR.32L412!tr [Fortinet]Trojan.SuspectCRC [Ikarus]Trojan/Win32.Spnr [AhnLab-V3]TR/Rogue.8426603 [AntiVir]Trojan.Mayachok.1 [DrWeb]Troj/Inject-AAT [Sophos]Win32:Malware-gen [Avast]WS.Reputation.1 [Symantec]Generic.dx!bhtk [McAfee]

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:

%APPDATA%\TS3Client\cache\remote\www.instantteamspeak.com\teamspeak-images\SearchIndexer.exe

File name: SearchIndexer.exe
Size: 151.04 KB (151040 bytes)
MD5: 699ea40469c0035881c8f5e70ed0bb19
Detection count: 35
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%\TS3Client\cache\remote\www.instantteamspeak.com\teamspeak-images
Group: Malware file
Last Updated: March 21, 2013

pefim3.exe

File name: pefim3.exe
Size: 102.4 KB (102400 bytes)
MD5: c0578aec91b341fee49d2f123befb29d
Detection count: 20
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: July 16, 2012

file.exe

File name: file.exe
Size: 98.3 KB (98304 bytes)
MD5: 469ebbf1dc14c19500328272d3c2900a
Detection count: 16
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: July 16, 2012