Suspicious
New signed executable with one low-trust detection, process-injection heuristics, and direct-IP contact but clean tier-1 consensus.
2bbfa21cba3d69207a…93d570e918The 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.
Engine coverage is strong (62 reporting) but the sole malicious result is low-trust with no family consensus, which normally indicates a false positive. Signing exists but carries no trusted-publisher or historical backing. Sandbox behaviour includes two offensive techniques and direct-IP contact without DNS, yet no sandbox flagged it malicious and dropped children are clean. The combination of new age, medium prevalence, and heuristic triggers without corroboration places the file in the suspicious category rather than safe or malicious.
Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.
onlyLowTrustFlagging: true with 1/62 reporting engines (Trapmine)
offensiveTechniques: T1055, T1562.001 observed in sandbox
signing.signer: 'Arnis' with no history or trustedPublisher match
contactedIps: ['162.159.36.2'] and zero domains
prevalence.classification: medium with 9 submitters
- Tier-1 engines all clean or timeout
- No malicious sandbox verdict
- No malicious dropped children
- Medium prevalence across 9 sources
- Process injection (T1055) observed
- Direct IP contact without domains
- Zero-day file (0 days old)
- Invalid signature tag present
Treat as suspicious; do not run on sensitive systems. Monitor for additional detections and consider submitting to our research team for deeper analysis.
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: Records what you type — keylogger behaviour.
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: Runs hidden system commands (script or shell).
Translated from the file's technical behaviour during analysis. It never ran on your device.
What to do now
We couldn't fully clear this file. Treat it with caution.
Don't run it unless you're certain it came from a source you trust.
Check where you got it — an email attachment or a random download link is a red flag.
If you're unsure, delete it. You can always re-download a clean copy from the official source.
If you're still unsure, scan it again in a day or two — detections often catch up on newer files.
1 contradiction resolved by the scoring engine
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.
- 162.159.36.2
- \Device\ConDrv\Connect
- C:\Users\<USER>\AppData\Local\com.louisdev.arnis\logs\arnis.log
- C:\Users\user\AppData\Local\com.louisdev.arnis
- C:\Users\user\AppData\Local\com.louisdev.arnis\EBWebView
- C:\Users\user\AppData\Local\com.louisdev.arnis\EBWebView\BrowserMetrics
- \Sessions\1\BaseNamedObjects\DBWinMutex
- \Sessions\1\BaseNamedObjects\Local\ChromeProcessSingletonStartup!
- \Sessions\1\BaseNamedObjects\__OMADM_NAMED_MUTEX__
Files this sample writes at runtime
This file drops 2 children at runtime. None are currently flagged malicious in our cache.
- 41c91a9c93d76295746a…1cc304Never scannednever seen before
- f7b24f2eb3d5eb055052…8b5fedNever 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:\Users\<USER>\Desktop\arnis-windows.exe"Sample contacted 1 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.
Evidence162.159.36.2
1 detection across 75 engines
Section entropy & packers
Section-level entropy and packer detection from the PE header. Nothing suspicious here — entropy is within the normal range for unpacked code.
How widely this file has been seen
Moderate prevalence — neither rare nor common. No strong prior applies.
Forensic fingerprint
- File name
- arnis-windows.exe
- Size
- 39.32 MB
- MIME type
- (unknown)
- Detected type
- Win32 EXE
- SHA-256
- 2bbfa21cba3d69207a26a39350fd9fd74b8d4562f422fc4dd977d993d570e918
- MD5
- 432ab0e0ba35ca6f5fd2dac727723c76
- SHA-1
- 4ece579f88802d468ffe8dff1f588cf140b5f968
- PE imphash
- 72111a4a13338dae0f61b5c2451f1c99
- First seen (VT)
- 5/19/2026, 2:02:00 PM
- Last analysis (VT)
- 5/19/2026, 2:02:00 PM
- First scan (MalwareTips)
- 5/19/2026, 5:07:11 PM
- Last scan (MalwareTips)
- 5/19/2026, 5:07:10 PM
- Code signer
- Arnisinvalid
Safety FAQ
Common questions about arnis-windows.exe, answered from the scan data above.
- arnis-windows.exe is suspicious — treat it as unsafe until you're sure. 1 of 75 antivirus engines flag it, which isn't a strong consensus but is enough to be cautious. Don't run it unless you fully trust where it came from, and prefer downloading the software fresh from its official site.
- arnis-windows.exe is a Windows executable program, about 39.3 MB. We identify a file by its cryptographic hash rather than its name, because the same filename can be reused by completely different files — the hash below is the reliable fingerprint.
- 1 of 75 antivirus engines flagged arnis-windows.exe, 1 of them as outright malicious. A small number of detections can include false positives, so we weigh which engines flagged it and what else the file does, not just the raw count.
- 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 arnis-windows.exe: 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 arnis-windows.exe 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.
- arnis-windows.exe claims a signer of Arnis, but the signature is not verified — an unverified or broken signature can be forged, so it should not be trusted as proof of who made the file.
- The SHA-256 hash of arnis-windows.exe is 2bbfa21cba3d69207a26a39350fd9fd74b8d4562f422fc4dd977d993d570e918, and its MD5 is 432ab0e0ba35ca6f5fd2dac727723c76. 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 May 19, 2026. Because a file's hash never changes, the identity of arnis-windows.exe 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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