Trojan.MSIL.Krypt.HUB

Trojan.MSIL.Krypt.HUB is a detection name used to identify a malicious program classified as a Trojan. The name indicates that the threat was written using the .NET framework (MSIL, or Microsoft Intermediate Language) and is associated with "Krypt," which typically refers to the use of code obfuscation or packing techniques designed to hide the malware's true purpose from security software and researchers. Beyond this classification information, specific technical details about this particular threat are not available, so the behaviors described below reflect what is typical of Trojans in this category and should not be taken as a confirmed, detailed profile of this exact file.

What This Threat Typically Does

Trojans like Trojan.MSIL.Krypt.HUB are generally designed to run quietly in the background without the user's knowledge or consent. Because the "Krypt" naming convention usually points to obfuscated or encrypted code, this type of threat is often built specifically to evade detection by security tools for as long as possible. Typically, Trojans in this category may be used to download and install additional malicious files, log keystrokes, steal stored passwords or financial information, give remote attackers access to the infected machine, or act as a delivery mechanism for other malware such as ransomware or spyware. The exact payload can vary widely from one infection to another, even within the same detection family, since cybercriminals frequently update and repurpose such threats.

How It Usually Gets Onto Computers

Trojans of this kind typically spread through common infection methods rather than self-replicating on their own. These usually include malicious email attachments or links disguised as invoices, shipping notices, or official documents; bundled downloads from unofficial or pirated software sources; fake software updates or cracks; malicious advertisements; and compromised websites that trick users into downloading infected files. Because the malware is obfuscated, it may also be hidden inside seemingly harmless files or disguised as legitimate applications to increase the chances that a user will open it.

Risks for the User

If active on a system, a Trojan such as this one can expose the user to a range of risks. These typically include theft of personal, financial, or login information, unauthorized remote access to the computer, installation of further malware, reduced system performance, and potential loss of privacy and data. Because the threat is designed to stay hidden, damage can accumulate over time before it is noticed.

Signs of Infection

Since this type of Trojan is built to avoid detection, obvious symptoms may not always be present. However, general warning signs that can indicate an infection of this kind include unexpected slowdowns, unusual network activity, unfamiliar processes running in the background, security software being disabled without explanation, unexpected pop-ups, or unfamiliar programs appearing on the system.

How to Stay Protected

Users can reduce their risk by keeping their operating system and software updated, avoiding downloads from untrusted or pirated sources, being cautious with email attachments and links from unknown senders, and using reputable, up-to-date security software to scan and monitor the system regularly. Maintaining regular backups of important data also helps limit the damage if an infection does occur. Practicing general caution online remains one of the most effective defenses against Trojans like Trojan.MSIL.Krypt.HUB.

Analysis Report

General information

Family Name:	Trojan.MSIL.Krypt.HUB
Signature status:	No Signature

Known Samples

i

Known Samples

This section lists other file samples believed to be associated with this family.

MD5: b6eb623aa6251dcf8eb5a94d82090da0 SHA1: 9a8fba28bbd715918615d1a1a99cb965ee644bb2 SHA256: 8A383730F5B24ADF5202AE789DF25F7176AF9D00A72D17BA2A0DBD682C861ECF File Size: 1.70 MB, 1697280 bytes

Windows Portable Executable Attributes

i

Windows Portable Executable Attributes

This section lists file attributes found within family samples. These attributes are extracted from the files’ Windows PE (Portable Executable) specification and various system flags. Portable Executable Attributes give malware researchers insight into a file’s functionality, executable details, platform and runtime environment.

• File doesn't have "Rich" header
• File doesn't have debug information
• File doesn't have exports table
• File doesn't have security information
• File is .NET application
• File is 32-bit executable
• File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
• File is either console or GUI application
• File is not packed
• IMAGE_FILE_DLL is not set inside PE header (Executable)

Show More

• IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

i

File Icons

This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.

Windows PE Version Information

i

Windows PE Version Information

This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.

Name	Value
Assembly Version	1.0.2.3
Comments	Fake Games Updater
Company Name	Fake Games
File Description	FG Updater
File Version	1.0.2.3
Internal Name	FGUpdater.exe
Legal Copyright	Copyright © Fake Games 2024
Original Filename	FGUpdater.exe
Product Name	Fake Games Updater
Product Version	1.0.2.3

File Traits

• .NET
• HighEntropy
• RijndaelManaged
• SmartAssembly
• x86

Block Information

i

Block Information

During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.

Total Blocks:	103
Potentially Malicious Blocks:	2
Whitelisted Blocks:	100
Unknown Blocks:	1

Visual Map

x 0 x ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

i

Similar Families

This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.

• MSIL.Agent.UFB
• MSIL.Coinminer.AJ
• MSIL.CsgoHack.QD
• MSIL.Injector.C
• MSIL.Krypt.EAIT

Show More

• MSIL.Krypt.HUB

Windows API Usage

i

Windows API Usage

This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.

Category	API
User Data Access	GetUserDefaultLocaleName GetUserObjectInformation
Anti Debug	NtQuerySystemInformation
Other Suspicious	AdjustTokenPrivileges
Encryption Used	BCryptOpenAlgorithmProvider CryptAcquireContext