Malicious
Unsigned JAR with tier-1 detections, process injection, and direct-IP C2 contact to prestigeclient.vip.
a465d6648049c33c63…dbd37414b3The reasoning behind this verdict
The MT AI Engine weighs every signal from this scan — antivirus detections, sandbox behaviour, code signing, prevalence and historical matches — to reach a single, evidence-based verdict.
The combination of tier-1 malicious detections, confirmed offensive MITRE techniques, and direct-IP C2 outweighs the lack of dropped malicious children and mixed community comments. Unsigned status and the filename injection flag further reduce any benign interpretation. Prevalence as common_old does not override the concrete behavioural and engine signals observed.
Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.
engines.tier1Malicious=3 (Avira TR/JAVA.Malware, ESET-NOD32 Java/TrojanDownloader.Agent.NYI, GData Java.Trojan.Agent.I1FVNY)
behaviour.offensiveTechniques=[T1055, T1560, T1562.001] and triggeredHeuristics.MalwareTips.Synth.ProcessInjection (high severity)
signing.signed=false and adversarialInputFlags.anyInjectionSuspected=true (commentInjectionSuspected)
contactedIps=[104.21.70.166, 172.67.137.182] with zero domains and contactedUrls=https://api.prestigeclient.vip/login
prevalence.classification=common_old (266 uniqueSources) yet fileType=JAR and filename=Prestige-Injector.jar
- No malicious dropped children
- No known-malicious contacted hosts
- No YARAify or CIRCL hits
- Unsigned JAR
- Tier-1 detections naming downloader families
- Process injection (T1055) observed
- Direct-IP C2 without DNS
- Adversarial filename pattern suspected
Block the hash and prevent execution of similar JAR files from untrusted origins until further analysis confirms the full payload chain.
What this file does
What it attempted when executed in an isolated sandbox
High concern: Hides inside another running program to evade antivirus.
High concern: Talks to a remote server to take commands or send out your data.
High concern: Tries to disable or bypass your security software.
High concern: Hijacks how Windows loads programs so it runs automatically.
Moderate concern: Obfuscates or packs its code to avoid detection.
Moderate concern: Lists running programs — often to find security tools.
Moderate concern: Communicates over the network in a non-standard way.
Translated from the file's technical behaviour during analysis. It never ran on your device.
Threat context
How downloaders work
This file is a delivery vehicle. On its own it can look small and harmless, but its job is to quietly pull down and install the REAL payload — often a stealer, ransomware, or bot — from a server the attacker controls.
Bottom line:Because the dangerous part arrives later, early scans can look cleaner than the threat really is.
What to do now
This file is dangerous. Treat it as harmful and remove it.
Don't open or run this file. Delete it from your Downloads (or wherever you saved it), then empty the Recycle Bin.
If you already opened it, disconnect from the internet and run a full scan with your antivirus — Windows Security, built into Windows, is sufficient.
If you typed any passwords while it was open, change them from a device you trust.
In future, only download software from the official website or an official app store.
java corroborated by 2 sources
- VT (74 engines)java
- MT AI Enginetrojandownloader
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
Adversary techniques mapped to the MITRE ATT&CK framework.
- 104.21.70.166
- 172.67.137.182
- https://api.prestigeclient.vip/login
- C:\Users\<USER>\AppData\Local\Temp\hsperfdata_<USER>\5528
- C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
- C:\Users\<USER>\AppData\Local\Temp\c141add7-4552-4dac-88ec-ca68939a58434132629380365877471.tmp
- C:\ProgramData\Oracle
- C:\ProgramData\Oracle\Java
- C:\Users\user\AppData\Local\Temp\hsperfdata_user\6520
- C:\jar\a.class
- C:\jar\e.class
- C:\jar\g.class
- /tmp/39ee8147-894b-43b8-a157-4478e6dc3a3b16501797850614196230.tmp
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- 883a093b9e0908a38e18…8bfd2dNever scannednever seen before
- f46824b3ad4765a2ad4b…2b081dNever scannednever seen before
- 99ebbdc1a1d78d9dc69f…b01747Never scannednever seen before
- 0a2efea7b42246edcac8…2d68c1Never scannednever seen before
- e357fe42bc8881eb6581…62a9b9Never scannednever seen before
- 5d599d7e806129c5df19…50d61dNever scannednever seen before
- c392694961cacf0ea863…da9070Never scannednever seen before
- ea068480d9c1f81d533f…54cd99Never scannednever seen before
- c0bd05f895b750a7fda2…341ee5Never scannednever seen before
- d87c5f3cdfb5b7c0510e…1ade9eNever scannednever seen before
YARA & heuristic rule matches
A researcher-curated or high-severity heuristic rule matched this sample. These rules target specific malware families and are near-definitive.
MITRE T1055 (Process Injection) observed — CreateRemoteThread / APC / reflective-DLL injection. The payload is being smuggled into a legitimate process to bypass AV hooks.
Evidence"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\<USER>\Desktop\download.jar"Sample contacted 2 external IP address(es) and zero domains. Benign software virtually always uses DNS; no-DNS direct-IP C2 is a strong malware indicator because it bypasses reputation systems and dodges domain-based blocklists.
Evidence104.21.70.166 · 172.67.137.182
11 detections across 74 engines
How widely this file has been seen
Widely seen in the wild for a long time. High prior this is legitimate; isolated detections on common-old files are usually false positives.
Forensic fingerprint
- File name
- Prestige-Injector.jar
- Size
- 111.8 KB
- MIME type
- (unknown)
- Detected type
- JAR
- SHA-256
- a465d6648049c33c6357cf12a6dc0c12f70366806abba49a08c713dbd37414b3
- MD5
- e774115a6768289eda82aede48b45422
- SHA-1
- 837988ca5b0bca14ef7ff22f0e08f0af66d72f3b
- First seen (VT)
- 10/11/2024, 8:27:33 PM UTC
- Last analysis (VT)
- 7/13/2026, 5:38:13 PM UTC
- First scan (MalwareTips)
- 7/16/2026, 4:23:59 PM UTC
- Last scan (MalwareTips)
- 7/16/2026, 4:23:59 PM UTC
- Community reputation
- -11flagged
Safety FAQ
Common questions about Prestige-Injector.jar, answered from the scan data above.
- Yes — Prestige-Injector.jar is malicious, so do not opened it, and delete it. 11 of 74 antivirus engines flag it (family: trojandownloader). It behaves as a downloader/dropper whose job is to pull additional malware onto the device. If you've already opened it, see the removal and recovery steps below.
- Prestige-Injector.jar is a file, about 112 KB. Our analysis identifies it as malicious (family: trojandownloader) — a downloader/dropper whose job is to pull additional malware onto the device. Because a file's name and icon can be faked, the safest way to identify it is by its cryptographic hash (below), not its filename.
- 11 of 74 antivirus engines flagged Prestige-Injector.jar, 11 of them as outright malicious. A detection rate at this level is a reliable signal that the file is dangerous.
- Act quickly. 1) Disconnect the device from the internet to stop the malware communicating or spreading. 2) Run a full scan with reputable anti-malware software (such as Malwarebytes) and quarantine everything it finds. 3) Change your important passwords from a DIFFERENT, clean device — many threats log keystrokes or steal saved credentials. 4) If you bank or shop on this device, watch closely for fraud and alert your bank. 5) For a confirmed infection, the most reliable fix is to back up your personal files and reinstall the operating system for a clean start.
- To remove Prestige-Injector.jar: 1) restart into Safe Mode (Safe Mode with Networking if you need to download a tool) so the malware doesn't auto-start. 2) Run a full scan with reputable anti-malware software and let it quarantine or delete the detections. 3) Delete the original Prestige-Injector.jar file and empty the Recycle Bin/Trash. 4) Check your browser extensions, startup items, and scheduled tasks for anything unfamiliar. 5) Reboot and scan again to confirm it's gone. If detections keep coming back, a clean operating-system reinstall is the most dependable cure.
- Prestige-Injector.jar is classified as a downloader/dropper whose job is to pull additional malware onto the device. Engines attribute it to the trojandownloader family. Knowing the family matters because it tells you the likely impact — data theft, remote control, file encryption, or unwanted ads — and guides the cleanup.
- The SHA-256 hash of Prestige-Injector.jar is a465d6648049c33c6357cf12a6dc0c12f70366806abba49a08c713dbd37414b3, and its MD5 is e774115a6768289eda82aede48b45422. This hash is the file's unique fingerprint — two files with the same SHA-256 are identical. Use it to confirm you're looking at exactly this file (not just one with the same name) when comparing against antivirus databases or a download's published checksum.
- This report reflects the scan run on July 16, 2026. Because a file's hash never changes, the identity of Prestige-Injector.jar is fixed — but antivirus coverage improves over time, so a file that looks clean today can pick up detections later (and vice-versa). If you need the latest picture, MalwareTips staff can re-run the analysis from scratch.
Reviews & malware reports(0)
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