BackDoor.TeamViewer

Posted: May 27, 2016

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:	6/10
Infected PCs:	15

First Seen:	May 27, 2016
OS(es) Affected:	Windows

BackDoor.TeamViewer is a Trojan that disguises itself within your PC as a component of the TeamViewer remote desktop application. Unlike TeamViewer, itself, BackDoor.TeamViewer's functions focus on using its network connections to convert the infected system into a proxy server for illegal Web content. Removing BackDoor.TeamViewer and any unwanted software related to it should use anti-malware programs also capable of detecting its installer, which may disguise itself as a software update.

How BackDoor.TeamViewer Gets Your PC to Play for the Wrong Team

Normally-legal programs also may turn towards threatening goals, which is an unfortunate truth malware analysts see repeated in abuses of TeamViewer. The remote access features provided by this product may encourage con artists to use BackDoor.TeamViewer as a de facto backdoor Trojan. However, with the new BackDoor.TeamViewer, con artists have found new uses for the product.

Their campaign distributes the Trojan with the help of a dedicated installer, Trojan.MulDrop6. This preliminary threat deploys itself through an unofficial Flash update that includes a fully-functional Flash installer, possibly distracting victims from the placement of additional programs on their PCs. As per its name, BackDoor.TeamViewer installs itself as a replacement for a default component of TeamViewer, which also is part of the dropper's payload.

The installation routine hides the default TeamViewer icon and other, visible aspects of the app while taking advantage of TeamViewer's default behavior to trick the program into running BackDoor.TeamViewer instead of a safe DLL file. BackDoor.TeamViewer's primary function doesn't attack the PC user directly, except by using system's resources for relaying Web traffic provided by its Command & Control server. In effect, the computer becomes a proxy server, making it difficult for legal authorities to track down the IP addresses of the con artists associated with the traffic.

A Clear View of Safety from BackDoor.TeamViewer

Rejecting Flash updates not derived from official, Adobe-endorsed sources may block most manual installation techniques known of having associations with the BackDoor.TeamViewer campaign. PC users who use TeamViewer routinely or have other reasons for having this product on their computers may wish to compare the characteristics of their avicap32.dll files (the component the Trojan replaces) with official numbers for potential discrepancies. However, con artists used to working with TeamViewer may take various measures for concealing their attacks. Consequentially, malware experts warn against assuming that BackDoor.TeamViewer infections will include any visible software changes.

The implicit features of any installation of TeamViewer also make it likely that con artists could exploit your PC for other purposes, such as using BackDoor.TeamViewer for collecting information, changing settings or downloading threatening content. While the official TeamViewer program is a powerful and legal piece of software, its unwanted presence, or presence with suspicious modifications like BackDoor.TeamViewer is a very typical indication of a threat infection.

Anti-malware scans provided by quality anti-malware products should be able to detect and delete either BackDoor.TeamViewer or Trojan.MulDrop6. However, as with any new threat, malware experts caution that outdated security software could fail to detect or completely remove BackDoor.TeamViewer, Updating security programs regularly and avoiding Flash links not provided directly by Adobe still are two of the best defenses any PC operator can put to use.

BackDoor.TeamViewer

Threat Metric

How BackDoor.TeamViewer Gets Your PC to Play for the Wrong Team

A Clear View of Safety from BackDoor.TeamViewer

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