Mal/Krap-D

Posted: July 11, 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:	23

First Seen:	July 11, 2012
Last Seen:	July 30, 2020
OS(es) Affected:	Windows

Mal/Krap-D is a backdoor Trojan that's designed for the Windows operating system, although the attack method that installs Mal/Krap-D also includes cross-platform compatibility by pairing Mal/Krap-D with the option to install an OS X or Linux-compatible Trojan instead of Mal/Krap-D. Like all backdoor Trojans, Mal/Krap-D compromises your computer's security and should be considered a high-level PC threat to be removed by a reliable anti-malware product, although symptoms of Mal/Krap-D's initial attacks are unlikely to be seen. SpywareRemove.com malware experts note Mal/Krap-D's infection vectors as coming from sites that have been hacked to host a malicious Java applet; this applet attempts to detect the victim's OS and install Mal/Krap-D (or a different Trojan, as appropriate). This throws additional stress on the necessity of practicing safe web-browsing guidelines for Java-based content, as well as on keeping secure website code with updated site maintenance software.

Mal/Krap-D: the First Foundation of a Trojan Tripod

For many PC users, the only indication they'll see of Mal/Krap-D is the appearance of a standard, albeit vague JavaScript prompt that requests permission to run. Since similar Java prompts appear for legitimate content all the time and since Mal/Krap-D's own Java applet is inserted into ordinarily-safe sites, it may simply be a habit to click through the request and immediately infect your PC with Mal/Krap-D. Anti-malware programs can detect this malicious Java package as Trojan-Downloader:Java/GetShell.A or Troj/JavaDl-NJ. Once you've granted your permission, Troj/JavaDl-NJ will try to detect your operating system as one of Linux, OS X or Windows. Only Windows computers will be infected by Mal/Krap-D, while OSX/Dloadr-DPG and Linux/Dldr-GV are reserved for OS X and Linux users, respectively.

This makes an unusual example of an online attack that features cross-platform compatibility, given that SpywareRemove.com malware researchers have observed most such attacks to focus explicitly on the most popular OS, Windows. However, all three Trojans, Mal/Krap-D included, are designed to behave identically and will open up a backdoor to make unauthorized contact with an external IP address.

The Bottom Line to Mal/Krap-D's Contamination of Safe Sites

Mal/Krap-D may also be identified as Backdoor:W32/GetShell.A, TR/Dropper.Gen or Infostealer.Gampass. Common dangers that can result from a Mal/Krap-D infection include the installation of other types of PC threats, theft of passwords and equivalently-confidential information, and security features that are circumvented or disabled completely. SpywareRemove.com malware experts recommend that you try to delete Mal/Krap-D after the initial infection, although using anti-malware software for this is preferable to minimize potential damage to your OS.

Mal/Krap-D is unlikely to show any symptoms, although, as noted earlier in this article, Mal/Krap-D can only be installed by Troj/JavaDl-NJ after you accept its prompt. While the website that was unintentionally hosting this attack has since been shut down, other sites may be hacked in the future, and exercising caution around suspicious Java applets is always recommended as common sense.

Mal/Krap-D

Threat Metric

Mal/Krap-D: the First Foundation of a Trojan Tripod

The Bottom Line to Mal/Krap-D's Contamination of Safe Sites

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