Trojan.MSIL.Krypt.UJB
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Popularity Rank: | 13,227 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 223 |
| First Seen: | March 19, 2023 |
| Last Seen: | July 14, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Krypt.UJB on your system indicates a potential security threat that requires immediate attention. This detection name suggests a type of malicious software designed to compromise the security and integrity of your computer. It is essential to understand the nature of this threat and take appropriate steps to remove it to prevent further damage.
Table of Contents
What Is Trojan.MSIL.Krypt.UJB?
Trojan.MSIL.Krypt.UJB is identified as a Trojan-type threat, which means it is a malicious program that disguises itself as legitimate software. Trojans are known for their ability to sneak into systems without being detected, often by exploiting vulnerabilities or through social engineering tactics. Once inside, they can cause a variety of problems, including data theft, system compromise, and the installation of additional malware.
How Trojan.MSIL.Krypt.UJB Operates
Like other Trojans, Trojan.MSIL.Krypt.UJB operates by infiltrating a system and then performing its malicious activities. It may connect to remote servers to download additional malware, steal sensitive information such as login credentials and personal data, or provide unauthorized access to the infected computer. The specific operations of Trojan.MSIL.Krypt.UJB can vary, but its primary goal is to compromise the security of the infected system for malicious purposes.
Symptoms of Infection
Identifying a Trojan infection can be challenging because these malware types are designed to remain stealthy. However, there are several symptoms that might indicate the presence of Trojan.MSIL.Krypt.UJB or similar malware on your system. These include unexpected changes in system performance, such as slow operation, frequent crashes, or the appearance of unfamiliar programs and icons. You might also notice unusual network activity, changes in your browser settings, or the presence of unwanted toolbars and extensions.
- Unexplained changes in system settings or performance.
- New, unfamiliar icons or programs appearing on your desktop or in your program list.
- Increased network activity without a clear cause.
- Changes in browser settings, such as a new homepage or unexpected search engine.
How to Remove Trojan.MSIL.Krypt.UJB
- Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all instances of the malware.
- Uninstall any suspicious programs or applications that you do not recognize or that were installed around the time the malware was detected.
- Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings to remove any malicious extensions or settings changes made by the malware.
- Reboot your computer and run another full scan with your anti-malware tool to ensure that all remnants of the malware have been removed.
Conclusion
Removing Trojan.MSIL.Krypt.UJB from your system requires careful and thorough action to ensure that all components of the malware are eliminated. By following the steps outlined above and maintaining good security practices, such as regularly updating your operating system and applications, using strong antivirus software, and being cautious with emails and downloads, you can help protect your computer from future malware infections. Remember, prevention and vigilance are key to maintaining the security and integrity of your digital environment.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Krypt.UJB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
fe782d51f7e11eb795c326a835b0c7a4
SHA1:
13c5c62c4c0426d6952dc3525499520d9525fe97
File Size:
194.05 KB, 194048 bytes
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MD5:
52e54247aae5e3e400487d7ac117a671
SHA1:
f9060c1f946f7eb04a3bb23375cb82c1bbe31523
File Size:
177.66 KB, 177664 bytes
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MD5:
06efcb34031f7c46d07b873b6bc9eda1
SHA1:
5f75d6caacf9ba3b05f524889a5e98e3a44d2cdc
File Size:
193.54 KB, 193536 bytes
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MD5:
ba87854047ecd242b0243f315c3f9687
SHA1:
32900957688fb6b885189c4309645c30ad20ee76
File Size:
182.27 KB, 182272 bytes
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MD5:
7a9ed7d7361c0f418b330319b81b36aa
SHA1:
85ead90c04b89db3d78e7c4e96b41cd4ebaa74bf
SHA256:
53952A1D350B46CE9145A959888A6B319644DE88279A850DB05D8D9D3F802A6A
File Size:
92.16 KB, 92160 bytes
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MD5:
405be5945b32882ef66b9ee04adcab4a
SHA1:
3a0ed67626a3dbf54d48f64681c7e80f113cf67b
SHA256:
36598784480C594EBEF31F420AE9A55E401BD07ACB4E363BDA4ECFEC6622C083
File Size:
74.24 KB, 74240 bytes
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MD5:
22fd6b5ab8d58d92e8370c5d3bf59d7c
SHA1:
9d85ce3f1f8a40b06651bc31ffe70e634ce9aee0
SHA256:
A22A3E4011080046155E132ED7496484CA5DACFB3BEB78C9CB1E827E67BC882B
File Size:
93.18 KB, 93184 bytes
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MD5:
92b361c7e3ad1760fe4b0bb60d78d385
SHA1:
c4a60a9584071a0f86446a097cef97c10e5b472f
SHA256:
52BB5441FE8C497BB50158B82B2F7AA89A73F268D042ACBD37F50CC4EDF40185
File Size:
59.90 KB, 59904 bytes
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MD5:
7dfce411a7c2b837766b0b5f8e5799b4
SHA1:
58103d85e8a2191288035fd57f68e05e313a8c33
SHA256:
6EABED69116145006B3AD73BFC8ACCF172F1CED44D0FB30D75B19829B83DD204
File Size:
190.98 KB, 190976 bytes
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MD5:
922b942064ab2e19136435b7cde603b3
SHA1:
f2aace54f00f9ce59ff852d299c2004a77a2cde1
SHA256:
B09C0660725DD7B03E8738FF4F79A8ED5296989F544EDB4DAF3C97DC68250651
File Size:
76.80 KB, 76800 bytes
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MD5:
4e37b431cb5d0a632be0f716345aad82
SHA1:
9c832ad3eb3295a9e81c85f0a4d48f845a5dfd32
SHA256:
532FCCFECD16C35C6A174FFE8942A8BE2E5DF9A0BB54B71920112CD341BCDDA4
File Size:
241.15 KB, 241152 bytes
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MD5:
3a5369ae232133d70f348e2d94b1a73c
SHA1:
c45bc5cb2b1de0eafa02d8c013ef7fe71b3a9d13
SHA256:
7DA9A6E8ADA97296B6DE4BE071C5746E173FB485ED36D1F9B491383ABE67A36E
File Size:
92.16 KB, 92160 bytes
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Windows Portable Executable Attributes
- 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 either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
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
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 |
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| Company Name |
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| File Description |
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| File Version |
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| Internal Name |
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| Legal Copyright |
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| Original Filename |
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| Product Name |
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| Product Version |
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File Traits
- .NET
- HighEntropy
- NewLateBinding
- ntdll
- RijndaelManaged
- Run
- x86
Block Information
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: | 83 |
|---|---|
| Potentially Malicious Blocks: | 51 |
| Whitelisted Blocks: | 20 |
| Unknown Blocks: | 12 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Similar Families
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.KAB
- MSIL.Cerbu.C
- MSIL.Dropper.XF
- MSIL.Krypt.SEA
- MSIL.Krypt.U
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- MSIL.Krypt.UJB
- MSIL.Spy.Agent.XF
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKLM\software\microsoft\tracing\rasapi32::enablefiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::enableautofiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::enableconsoletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::filetracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::consoletracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::maxfilesize | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::filedirectory | %windir%\tracing | RegNtPreCreateKey |
| HKLM\software\microsoft\tracing\rasmancs::enablefiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasmancs::enableautofiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasmancs::enableconsoletracing | RegNtPreCreateKey |
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| HKLM\software\microsoft\tracing\rasmancs::filetracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasmancs::consoletracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasmancs::maxfilesize | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasmancs::filedirectory | %windir%\tracing | RegNtPreCreateKey |
Windows API Usage
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 |
|---|---|
| Syscall Use |
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5 additional items are not displayed above. |
| User Data Access |
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| Encryption Used |
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| Other Suspicious |
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| Anti Debug |
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| Network Winsock2 |
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| Network Winsock |
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| Network Winhttp |
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| Network Info Queried |
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| Process Manipulation Evasion |
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