Trojan.MSIL.Taskun.JA
Trojan.MSIL.Taskun.JA is a Trojan horse detection that targets Windows computers. The "MSIL" portion of its name indicates that the malicious program was written using Microsoft's .NET framework, a common technique used by malware authors because it allows threats to be compiled quickly and can sometimes help the code slip past less thorough security scans. As with most Trojans, this threat is designed to run quietly in the background without the user's knowledge or consent, carrying out tasks that benefit the attacker rather than the computer's owner.
Table of Contents
What Trojan.MSIL.Taskun.JA Does
Like other threats in the Trojan category, Trojan.MSIL.Taskun.JA does not announce its presence. Instead, it typically tries to establish a foothold on the infected system and may attempt to perform actions such as collecting information about the computer, modifying system settings, creating or manipulating scheduled tasks to maintain persistence, or communicating with a remote server controlled by cybercriminals. Many Trojans in this family are also capable of downloading and installing additional malicious components, which means an infection that starts small can escalate into a much larger problem if left unaddressed. Because exact capabilities can vary between variants, users should treat any detection of this threat as a serious warning sign rather than a minor nuisance.
How It Usually Gets onto Computers
Trojans of this type commonly spread through deceptive means rather than exploiting software flaws directly. Typical infection methods include malicious email attachments disguised as invoices, receipts, or other legitimate-looking documents; links in phishing messages; bundled downloads from unofficial or pirated software sources; fake software updates or cracks; and malvertising campaigns that redirect users to compromised websites. Once the user is tricked into opening the infected file or clicking the malicious link, the Trojan installs itself silently in the background.
Risks for the User
An active Trojan infection can expose a user to a range of risks, including theft of personal or financial information, unauthorized remote access to the system, degraded computer performance, and the installation of further malware such as ransomware, spyware, or cryptocurrency miners. Because Trojans are built to operate covertly, victims may not notice any of these consequences until significant damage has already occurred, such as drained bank accounts, stolen credentials, or a severely compromised system.
Signs of Infection
Since Trojans are designed to stay hidden, signs of infection can be subtle. Users should watch for unexplained slowdowns, unusual spikes in CPU or network activity, programs or processes they don't recognize running in Task Manager, unexpected scheduled tasks, security software being disabled without explanation, or unfamiliar pop-ups and browser redirects. Any of these symptoms, especially in combination, could indicate the presence of a Trojan like this one.
How to Stay Protected
To reduce the risk of infection, avoid opening email attachments or clicking links from unknown or unexpected senders, download software only from official and trusted sources, keep the operating system and all applications updated with the latest security patches, and use reputable anti-malware tools to scan the system regularly. Maintaining regular backups of important files is also a valuable safeguard, ensuring that data can be recovered if a Trojan or related malware causes damage. Staying cautious and informed remains one of the most effective defenses against threats like Trojan.MSIL.Taskun.JA.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Taskun.JA |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
4fa126c30b2458ec025665db7845ba24
SHA1:
04563fcf452339311b587e0c886a124a1792c15a
SHA256:
7FF9C750FFF98B0394F69189E12268FEB9CA79F331B978E6C62D9BBB26A2E3B8
File Size:
4.00 MB, 3999744 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)
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 | 1.0.0.0 |
| Comments | 69:=7A3@E=@CHG;>JAH |
| Company Name | ;A@<;<68B5J9584?<9H4GJ |
| File Description | ;<975@>E=GG;=J3DF:CA4?A |
| File Version | 11.27.15.253 |
| Internal Name | newo.exe |
| Legal Copyright | Copyright © 2015 ;A@<;<68B5J9584?<9H4GJ. All rights reserved. |
| Original Filename | newo.exe |
| Product Name | ;<975@>E=GG;=J3DF:CA4?A |
| Product Version | 11.27.15.253 |
File Traits
- .NET
- NewLateBinding
- RijndaelManaged
- 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: | 443 |
|---|---|
| Potentially Malicious Blocks: | 36 |
| Whitelisted Blocks: | 211 |
| Unknown Blocks: | 196 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
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 |
|---|---|
| \device\namedpipe\dec_78ba2068cb094bad8dd733f270c4a5e6 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| \device\namedpipe\dec_78ba2068cb094bad8dd733f270c4a5e6 | Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288 |
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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