[!WARNING] Final verdict available at the end of this report.
The scan examined one Java class, war.jnt.Loader, from this 7.3 KB JAR. The class parsed successfully, and the decompiler attempted to inspect it, but two methods—including the static initializer—triggered complexity safeguards. These methods contain dense branches, many exception handlers, and limited local-variable information.
The scanner found one file-access indicator using Java file APIs and one higher-priority review indicator for a native-loading API. It found no suspicious archive entries, URLs, domains, IP addresses, or outbound-connection indicators. The native-loading indicator and the parts of the class that could not be fully decompiled deserve closer inspection.
No high-signal malicious behavior was detected in the supplied report. Specifically, the report contains no indicators of credential theft, token stealing, hidden downloads, destructive commands, process execution, persistence, or data exfiltration.
However, the report does contain a native_load_api indicator. Native loading allows Java code to load a compiled library outside the normal Java bytecode environment. This can be legitimate, but it is harder to inspect and can conceal behavior that a basic JAR scan cannot see.
The report does not show evidence consistent with a remote-access trojan, remote command execution, or persistence.
There are also no network indicators or URLs in the scan. The native-loading indicator is a review concern, but by itself it does not prove remote control or RAT behavior.
| Class | Severity | Behavior | Evidence |
|---|---|---|---|
war.jnt.Loader |
Review required | Uses Java file APIs and a native-loading API | java_io_file_api and native_load_api indicators |
war.jnt.Loader — static {} |
Review required | Complex static initialization could not be fully decompiled | 2,862 bytes of code, 134 exception-table entries, 210 branches, no local-variable table |
war.jnt.Loader — decompress(byte[]) |
Review required | Complex decompression-related method could not be fully decompiled | 486 bytes of code, 28 exception-table entries, 39 branches, no local-variable table |
The report does not identify any bundled third-party libraries. All suspicious indicators are associated with the only class in the JAR.
No bundled third-party library classes were reported.
The scan therefore provides no evidence that this JAR contacts an external server. This does not rule out network behavior hidden inside native code, but no such behavior was identified by this report.
The class was parsed successfully, but two methods could not be cleanly decompiled because of a preflight complexity guard. The scanner noted:
These are obfuscation or hard-to-review indicators, not proof of malicious intent. The static initializer is particularly important because it runs when the class is initialized, and it was not fully readable in the decompiler output.
There are no reported metrics libraries, update-check libraries, database libraries, or other common shaded dependencies to explain the findings. The indicators therefore belong to the JAR’s own single class, although that does not automatically make them malicious.
The main unresolved concern is the native_load_api indicator in war.jnt.Loader. Native code is outside the normal Java class inspection path and can perform file, process, network, or system-level actions that are difficult to assess from this report alone.
The static initializer and decompression method also have unusually complex bytecode and were not fully decompiled. This combination makes the JAR harder to verify than a simple, transparent library.
There are no major confirmed red flags such as credential theft, hidden downloads, destructive commands, persistence, or remote-control behavior in the supplied evidence.
25b9fb36e533077401f33b2c05bc27d2f6aae07c47e606776d73ae4590d259efStatic JAR scanning examines bytecode and metadata; it does not prove that a file is completely safe. Native libraries may not be fully represented in Java-level results, and decompiler failures can leave important logic unreadable. Runtime monitoring, publisher verification, antivirus scanning, and sandbox testing may reveal behavior that this report cannot.
Yes. A JAR can contain malicious Java bytecode, embedded files, or native libraries. This report does not identify a confirmed virus, but it does identify native loading and code that was difficult to inspect.
Verify the source and SHA-256 hash, scan it with multiple security tools, inspect its permissions and dependencies, and test it in an isolated environment. Pay particular attention to native libraries and code that cannot be decompiled.
It can detect some related indicators, such as suspicious network activity, process execution, or persistence. It cannot guarantee detection of every RAT, especially when behavior is hidden in native code or heavily obfuscated code. This report does not show evidence of a RAT.
No. Obfuscation can be used for intellectual-property protection, optimization, or generated code. It increases uncertainty because it makes inspection harder; it is not proof of malware by itself.
Verdict: Use caution
Risk level: Moderate
Confidence: Moderate
Should I trust this JAR, and why? The report does not show network activity, credential theft, persistence, destructive actions, or remote-control behavior. However, the only class uses a native-loading API, and its static initializer and decompression method were too complex for the decompiler to fully inspect. Because these indicators come from the JAR’s own code rather than an identified common library, the file should not be treated as fully verified. Use it only after confirming its source, checking the hash, and testing it in an isolated environment.