Trojan.MSIL.Downloader.JPA
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: | 8,390 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 40 |
| First Seen: | November 20, 2025 |
| Last Seen: | July 31, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Downloader.JPA on your system indicates a potential security threat that requires immediate attention. This type of threat is categorized as a Trojan, which is a broad category of malware that can perform a variety of malicious actions on an infected computer. Understanding what Trojan.MSIL.Downloader.JPA is and how it operates is crucial in taking the necessary steps to remove it and protect your system from further harm.
Table of Contents
What Is Trojan.MSIL.Downloader.JPA?
Trojan.MSIL.Downloader.JPA is a type of malware that is designed to download and install additional malicious software on an infected computer. The "Trojan" part of its name refers to its ability to disguise itself as legitimate software, while the "MSIL" part suggests that it is written in Microsoft Intermediate Language, which is a platform-agnostic intermediate representation of the .NET Common Intermediate Language. The "Downloader" part indicates its primary function of downloading other malicious components. The "JPA" suffix may indicate a specific variant or a naming convention used by the malware authors, but without specific details, it's hard to determine its exact significance.
How Trojan.MSIL.Downloader.JPA Operates
Once Trojan.MSIL.Downloader.JPA infects a computer, it can operate in various ways, depending on its design and the intentions of its creators. Typically, it will attempt to connect to a command and control server to receive instructions or download additional malware components. This can lead to a range of malicious activities, including data theft, unauthorized access to the system, or the installation of ransomware. The malware may also attempt to disable security software or manipulate system settings to maintain its presence on the infected computer.
Symptoms of Infection
Symptoms of a Trojan.MSIL.Downloader.JPA infection can vary but may include unusual system behavior, such as unexpected pop-ups, slow system performance, or unfamiliar programs installed on the computer. In some cases, the malware may not exhibit noticeable symptoms, making it difficult for users to detect without the aid of security software. Regular system scans and monitoring for suspicious activity are essential for early detection and mitigation of the threat.
How to Remove Trojan.MSIL.Downloader.JPA
- Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for the removal process. This can usually be done by pressing a specific key (such as F8) during startup, though this may vary depending on your computer's manufacturer and operating system.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all components of the Trojan.MSIL.Downloader.JPA malware. Ensure that the tool is updated with the latest definitions before running the scan.
- Uninstall any suspicious programs that were installed around the time the malware was detected. Be cautious and only remove programs that you are certain are malicious or unnecessary.
- Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings to remove any malicious extensions or settings that the malware may have altered.
- Reboot your computer and perform another full scan with your anti-malware tool to ensure that all components of the malware have been removed. This step is crucial to confirm that the system is clean and to remove any potential remnants of the malware.
Conclusion
Removing Trojan.MSIL.Downloader.JPA from an infected computer requires a methodical approach to ensure all components of the malware are eliminated. By following the steps outlined above and maintaining vigilance through regular system scans and updates, users can protect their computers from this and other types of malware. It's also important to practice safe computing habits, such as avoiding suspicious downloads and links, to prevent future infections. Remember, the key to dealing with malware effectively is early detection and swift, thorough removal.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Downloader.JPA |
|---|---|
| Signature status: | Modified signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
b43b9651ec352d9b16c64d859ac2decf
SHA1:
be3335536c0169ce0ab43e4a1961412813d1db33
SHA256:
2DAB67B73DC0A2C042AED365F455ECAF11FFC51DA548F8A3B765E5ED470682BB
File Size:
4.15 MB, 4146336 bytes
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MD5:
1fc92f20cca2d1a560f0f1b962445a53
SHA1:
cdf502bba091d52eeedb626677027ddb1ee4fc1d
SHA256:
3E932257BA164731968961F12E59C8A65121BE8F2984368144358DF0665A9256
File Size:
5.29 MB, 5288712 bytes
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MD5:
3d687b5cf3c062f13af5fd20a778d12f
SHA1:
3fec4ab7936c7414a0e2b62c35d46456bc118dcc
SHA256:
B30127DA84D60831D9899FED80E431833A330243244B955E92624494438706DF
File Size:
5.35 MB, 5349136 bytes
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MD5:
89c214d27ab5a2c0ce921b7c6794cbd8
SHA1:
ed29064d8aeccf3e9fa8126e1399af732e015fbc
SHA256:
78D6CBE6DCDEF7BCA7F35D85930DC16047EB2C2769D68FADC6BD265DC1EB2AE1
File Size:
5.35 MB, 5347592 bytes
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MD5:
cc97fd6d0e83b09c8afdc53c3552304e
SHA1:
57ad4eedbaf3cce52ca133aa837fbe874ea1b4bd
SHA256:
8603B8D766DC8E45A9D08DACBF52362B60AEE143F2F449CBB7B4C39C76BB96AB
File Size:
5.30 MB, 5302536 bytes
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Show More
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MD5:
2f2c7a7d47819a896ba99f158c3550c6
SHA1:
8c0108a3c7cd07e751d5a4acbf5c47704ec49eaf
SHA256:
758D7E480CA9356726976C2B419DB1A8E6F6543F14ED54E72A095200A9EDF20A
File Size:
4.15 MB, 4152528 bytes
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MD5:
e75ac8a392d286a44ea4e5b7d68c3a6b
SHA1:
7f2760d08714461126f095dcc3fc9b2aeed1ddc9
SHA256:
8A587D39EE4C8A7FA39007764CB2D92D11117750461B6982BAE0298FF5B363B5
File Size:
4.15 MB, 4146848 bytes
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MD5:
927750edb4334675233734a4d4da1546
SHA1:
d3017114a310a12c75947b45e5b10fd31745d13a
SHA256:
9B23AC89E60C3362DE7926DBF933AAD5AC83D2C8E6DFBA80D1EF4DD6CE92FE03
File Size:
5.35 MB, 5347592 bytes
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MD5:
d0b2a36beb317b184e403b91521e49ba
SHA1:
876302a16dc6feef6bb718c05f9414609d0bbcba
SHA256:
34DCF8E44D17AE30A89C1FE82979939EC56B06142F310884FB4C23F02F462ED3
File Size:
4.18 MB, 4178080 bytes
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MD5:
e02f2a82e469eac74b2996377dad23b1
SHA1:
51fa453b3f47ad4fdcfb4dc23a035226257a1c29
SHA256:
218DC0175F0650CCF24AF6ECA42D843978D09589F427677E5390BDAA6DD20982
File Size:
5.35 MB, 5347592 bytes
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MD5:
7efe6d9fd5f01cfc2fe6d752246e9b41
SHA1:
707241190d60383e29ad64691a2d0f225eeb0db4
SHA256:
038FFE77D32C65D460F6F1D022769E197AFED99345AB2B61D3B398020D339FD1
File Size:
4.19 MB, 4191392 bytes
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MD5:
5464e6cfef02547be8baad4f7e4b6288
SHA1:
dd7353015ddf4d25d6113b08bccaae415830d47f
SHA256:
BA81AAAA922DCD6886DC0F5046D56014970AFCF92C2B69CC3853174F66931803
File Size:
5.26 MB, 5260560 bytes
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MD5:
c123df522047c677806f302c9e35f24a
SHA1:
acdcda1dc0abac5ef7c6c3823b4fc7f1e8515a6a
SHA256:
6E7896AB373F0B95B8D376503878AA725F0376F01DD0AFE9ED110EE1502BD433
File Size:
4.19 MB, 4192600 bytes
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MD5:
c9cb9145caacfb251ae5f2f85fd497d7
SHA1:
f45d8ed4cd5e6dfd6284c1fbdc6946f13c21afd6
SHA256:
C34897E080BAAABFCF41866693B91F1F8173E8B9697B1BFD533E701E7B9087FF
File Size:
4.19 MB, 4186320 bytes
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MD5:
3737c71af2914095e7edfe58a32b5e6e
SHA1:
596a2fc9f870236d59617b88e36fd19f26bb4c59
SHA256:
5F6F3086D531C8C7631928AF125F2547074592C4AD8EA5585A474A8B46CC3E54
File Size:
5.35 MB, 5350160 bytes
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MD5:
9836a616477a78cf171889787607bbdb
SHA1:
ffbbad26916d1ddd11a8956e213d9b0334bad054
SHA256:
378CD0F3DB2D8B62436E7AAA3493B8E3694C1F4ED1D43FBD63D4D9E4EB08E2DB
File Size:
5.35 MB, 5347592 bytes
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MD5:
920c4a797c0d0ce9bffc49d509f462d1
SHA1:
299542d3de4368b497ea08c8cf9d3b31ef0a00ef
SHA256:
3D254B80253487072FF39AAB589D1881CC27613605E19984220F57B71D6E9298
File Size:
5.30 MB, 5298440 bytes
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MD5:
37a120a56efcd24c329f8a74bb52ba4b
SHA1:
77ca0f03d4ef45e83aa96f1fbcc545c29a5e51a9
SHA256:
8AD1CF54CFFE95CD9F11078F4E8899D9C758B012AEA800D9B8FB234A7E0FC43E
File Size:
4.21 MB, 4211080 bytes
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MD5:
c9261bc27df0554af5de411b4f71a900
SHA1:
89ddfb4e556602c946a474eb3f8607a1a1cc78e5
SHA256:
18C396B242FF846C44F414A2C393460481F68EA11540A1A8D85EC07DDFBF9A29
File Size:
5.30 MB, 5298440 bytes
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MD5:
aaf9f6c2707e24a90fd9e2cb0b04a64c
SHA1:
378343f7e3ae7d4de26a818e367c968c62a6801e
SHA256:
EFE0B86E0DF516D6D3FA0973DEE58D2A27A0AD843F82BE3E1538427912E365DA
File Size:
4.25 MB, 4250504 bytes
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MD5:
4667b51519a025a0fa25ba57eba669c3
SHA1:
8eba8d713d7c5a0afb21d96c6f3197fbfc623682
SHA256:
2B260BBB16D8823C144806B076D81047719C43B5F1A4D049EA5508C0B531E49E
File Size:
5.30 MB, 5298440 bytes
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MD5:
fb4fb35fc421a25d05f108d5a947cc64
SHA1:
cffdc6c1f0f33be26cffcb137fb0f4a146f670ae
SHA256:
560029E19C7B0DF6E26F19DD234517270154BC21C012B6D9387AADEC868C20F4
File Size:
4.89 MB, 4889192 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Traits
- .NET
- HighEntropy
- Installer Version
- 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: | 3,138 |
|---|---|
| Potentially Malicious Blocks: | 555 |
| Whitelisted Blocks: | 2,580 |
| Unknown Blocks: | 3 |
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.- ConnectWiseControl.A
- DarkKomet.PA
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| c:\users\user\appdata\local\temp\setup.msi | Generic Read,Write Data,Write Attributes,Write extended,Append data |
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 |
|---|---|---|
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | 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 |
|---|---|
| User Data Access |
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| Anti Debug |
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| Encryption Used |
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| Other Suspicious |
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| Process Manipulation Evasion |
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