Trojan.Crypt.Delf.F

Posted: March 31, 2011

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:	9

First Seen:	July 24, 2009
Last Seen:	June 30, 2021
OS(es) Affected:	Windows

Trojan.Crypt.Delf.F is a computer Trojan that is known to slip onto targeted computer systems through a backdoor vulnerability in their security defenses. These backdoor vulnerabilities are most often discovered by remote hackers and then employed to inject Trojan.Crypt.Delf.F onto targeted computers. Criminal hackers are known to utilize backdoor portals to infect computer systems connected to the Internet, without either their users' knowledge or permission.

Trojan.Crypt.Delf.F is a sneaky, annoying, and dangerous security threat that should be removed from compromised computer systems upon detection.

As a Trojan, this little bit of malware poses a serious, noteworthy security risk to any computer system Trojan.Crypt.Delf.F infects.

This particular Trojan is capable of infecting targeted computer systems with relative ease. The ironic part, though, is that once Trojan.Crypt.Delf.F has managed to get Trojan.Crypt.Delf.F's hooks into your computer system, it is hard to detect and even more difficult to annihilate from an infected computer system.

When Trojan.Crypt.Delf.F is injected, downloaded, and installed onto a targeted computer system, there is absolutely NO sign of Trojan.Crypt.Delf.F's nasty presence entering and compromising the computer system in question. If Trojan.Crypt.Delf.F successfully manages to breach your computer's security defenses and begins Trojan.Crypt.Delf.F's process of infecting your system, there will be no dialogue box or display of any kind alerting you about Trojan.Crypt.Delf.F's sneaky presence. Trojan.Crypt.Delf.F's entire process of infecting a targeted computer system is done quietly and sneakily, and unless you keep up with your computer's security software's regular updates, this Trojan can be virtually undetectable.

For this reason, it is imperative that we – as twenty-first century computer users very much reliant on our technologies – keep our computer's security defenses up to date and always running.

Trojan.Crypt.Delf.F is a Malware Promoting a Trojan

Trojan.Crypt.Delf.F has been categorized as a Trojan that can spread at a medium speed and is defined as capable of wrecking medium-level damages on compromised computer systems. Such damages include pulling malicious, infected files off of the Internet and dropping them onto targeted computer systems through already existing backdoor vulnerabilities. These seditious files are often malware applications and other types of nasty and dangerous computer threats.

Therefore, though Trojan.Crypt.Delf.F is only considered a medium-level security risk, this Trojan is capable of wrecking untold amounts of damage on compromised computers systems, via Trojan.Crypt.Delf.F's penchant for further infecting compromised systems with even more terrible security threats.

It has been reported that this malware, which promotes a Trojan, is known to make a duplicate of its nasty infection in a %SYSDIR%, named msnmsgr.exe file. Trojan.Crypt.Delf.F also creates two files, named termper.txt and ctzz.txt, and injects them alongside the copy of itself located in %SYSDIR%.

This is a dangerous, infected portal and security vulnerability, because hackers can utilize it to infect any vulnerable computer system connected to the Internet.

In addition, Trojan.Crypt.Delf.F is known to corrupt the registries of the computer systems that Trojan.Crypt.Delf.F infects, by adding and/or creating infected registry values. When a compromised computer system's registry is corrupted, the compromised computer is left unstable and very vulnerable to all kinds of cyber attacks. For this reason, if you find that Trojan.Crypt.Delf.F has managed to evade your computer's security defenses and has latched itself onto your system, you should take the necessary steps to remove this security threat as soon as you can.

Aliases

probably unknown NewHeur_PE [NOD32]Trojan.Crypt.Delf.X [BitDefender]Trojan Horse [Symantec]Generic Trojan [Panda]Backdoor.Win32.Advertor [Ikarus]W32/Malware [F-Secure]Trojan.Delf.f [CAT-QuickHeal]Trojan.Crypt.Delf.F [BitDefender]Generic10.TKG [AVG]TR/Crypt.Delf.F.42 [AntiVir]

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:

msmmsgr.exe

File name: msmmsgr.exe
Size: 210.43 KB (210432 bytes)
MD5: 17310505a4591823eaf477a8e6c08114
Detection count: 84
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: December 11, 2009

Nvsvc32.exe

File name: Nvsvc32.exe
Size: 305.66 KB (305664 bytes)
MD5: 7fe03524ded0ecf85bb42edc28803082
Detection count: 41
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: May 25, 2010