Is utorrent safe?
uTorrent installer signed by Rainberry Inc shows 3 tier-1 PUA detections plus process-injection and file-encryption MITRE techniques.
16 of 75 engines flag the file, three of them tier-1, with labels pointing to adware or PUA. The binary is legitimately signed yet exhibits process injection and data-wiping techniques while contacting numerous IPs directly.
e2837e13d80e4602b0…0df219f025f3b7Recommended next actions
Before opening
Do not open it until the source can be verified independently.
If you already opened it
Stop using it, scan the device, and watch for unexpected behavior or security alerts. Get a fresh copy from the original trusted source and verify its exact hash when possible.
Intelligence
The saved assessment, checked against the scan evidence and recorded coverage.
The reasoning behind this verdict
This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.
16 of 75 engines flag the file, three of them tier-1, with labels pointing to adware or PUA. The binary is legitimately signed yet exhibits process injection and data-wiping techniques while contacting numerous IPs directly.
The combination of tier-1 PUA detections, revoked-cert tag, and six offensive MITRE techniques outweighs the clean contacted-hosts result and medium prevalence. Similar-hash history shows prior borderline verdicts on the same signer. No malicious children or sandbox consensus exist, leaving the file in mixed-signal territory.
What We Detected
16 of 75 engines report malicious or PUA activity. Three tier-1 engines label the sample Adware.Downware, Riskware/uTorrent, or Generic Reputation PUA. The file is signed by Rainberry Inc, yet the certificate is flagged revoked and the binary uses NSIS packaging.
Threat Behavior
Runtime evidence shows process injection (T1055), privilege escalation (T1134, T1548), and data destruction (T1485, T1486). The sample contacts 15 direct IPs and multiple uTorrent update domains; none of those hosts appear in our malicious cache. Ten dropped children were inspected and none flagged malicious.
What To Do Now
Do not run the installer if you did not obtain it from the official uTorrent site. Keep Windows Defender and other endpoint protection enabled. If the file is already on disk, submit it to your security vendor for deeper analysis before execution.
Where this verdict could be wrong2 caveats
- contactedHosts.inspected=11, maliciousHosts.length=0 — no complete contacted-host reputation result was available observed.
- droppedChildren.hasMaliciousChild=false — 10 children inspected, none malicious.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- verified signature from Rainberry Inc
- zero malicious dropped children
- zero malicious contacted hosts in cache
- tier1 PUA detections present
- revoked signing certificate
- MITRE techniques T1055, T1485, T1486 observed
- direct-IP network traffic without domain resolution
Treat the installer as potentially unwanted; obtain uTorrent only from the vendor's official website and keep all security software active.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete16 of 75 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial11 of 31 contacted hosts were cross-checked; coverage is incomplete.
YARA
Complete5 signature or behavior rules matched.
External intel
Complete3 of 3 independent reference sources completed.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime flight recorder
Capture complete- 1isolated sandbox run
- 37MITRE ATT&CK techniques
- 15spawned processes
- 40network contacts
- 40filesystem & mutex artifacts
What this file does
Observed actions and their security significance
High concern: Injected code into another process, a technique that can conceal execution.
High concern: Encrypted files or data, behaviour commonly associated with ransomware.
High concern: Changed an auto-start location that can make code run after sign-in or restart.
High concern: Manipulated how the operating system loads code, which can redirect execution.
Moderate concern: Contained obfuscated or packed code that makes inspection harder.
Moderate concern: Runs hidden system commands (script or shell).
Moderate concern: Removed execution artefacts or logs, which can conceal activity.
These are observed capabilities from an isolated analysis. A technique does not prove malicious intent on its own, and the file never ran on your device.
Attack story
Runtime observations grouped by analysis stage. Arrows organize the stages; they do not claim chronology or causality.
Input file
The submitted object
- FileObserved
utorrent
e2837e13d80e4602b0c2d711c6d6c17217f4a80c8ff0b33dd90df219f025f3b7
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Users\<USER>\Desktop\program.exe"
02Isolated runtime analysis - ProcessObserved
Observed process
"C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\utorrent.exe"
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
System.dll
C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\System.dll
04Isolated runtime analysis - Written fileObserved
nsislog.txt
C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\nsislog.txt
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
44.216.234.183
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
3.225.226.96
Contact observed during runtime.
07Isolated runtime analysis - +1 more recorded observation in Analyst mode
7 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.
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.
- 44.216.234.183
- 3.225.226.96
- 82.221.103.246
- 44.206.88.197
- 34.201.157.226
- 34.237.133.58
- 52.6.178.148
- 43.175.236.102
- 3.209.149.35
- 52.1.217.242
- http://i-21.b-47254.ut.bench.utorrent.com/e
- http://i-6000.b-47254.ut.bench.utorrent.com/e?i=6000
- http://update.utorrent.com/installoffer.php?h=gDzGfl9IqiYWT5_O&v=113358998&w=1DB10106&l=en&c=US&w64=1&db=ie&cl=uTorrent&tsub=1&svp=4
- http://update.utorrent.li/installstats.php?cl=uTorrent&v=113358998&h=gDzGfl9IqiYWT5_O&w=1DB10106&bu=0&pr=0&cmp=0&ocmp=0&showtbexists&pid=2740&cau=0&lunv=0&tbe=0&view=win32
- http://i-21.b-47254.ut.bench.utorrent.com/e?i=21
- http://update.utorrent.com/installoffer.php?h=ezbJPBV-zZhvhWSa&v=113358998&w=4A64000A&l=en&c=US&w64=1&db=other&cl=uTorrent&tsub=1&svp=4
- C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\System.dll
- C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\nsislog.txt
- C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\utorrent.exe
- C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\nsisFirewall.dll
- C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\INetC.dll
- C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\INetC.dll
- C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\nsisFirewall.dll
- C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\nsislog.txt
- C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\System.dll
- C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\utorrent.exe
- Local\\xb5Torrent4823DF041B09
- cversions.3.m
- Global\OneSettingQueryMutex+compat+encapsulation
- 92a289800886146f.mtx
- Local\µTorrent4823DF041B09
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- 9b0212eb1cebf95ccc84…2bdc7fNever scannednever seen before
- 898dd5672036df0566df…0c343aNever scannednever seen before
- 02375d7429cb3cf8bbec…d10235Never scannednever seen before
- da3f122d19f811a0ee68…fde700Never scannednever seen before
- 957e60b1dbdc3af93dff…42ecd6Never scannednever seen before
- 602eb15038277d981ab7…4a5025Never scannednever seen before
- 5464e50cedda3ff69312…dab06aNever scannednever seen before
- 4325244a7c1b300cd600…fae86dNever scannednever seen before
- 3e50f7d57ce4b8bf6ea0…75f2b5Never scannednever seen before
- 31f0db7b07cb2da34400…eba746Never scannednever seen before
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Evidence integrity
Chain of custody for the facts preserved in this report.
- 5rule hits recorded
- 16 / 75engines flagged
- 3,552sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
4 high-confidence signature or behavior rules matched this file.
Verdict inputView chapterProvenanceDerivedSourceSignature and behavior rulesObserved at - 02
16 of 75 antivirus engines flagged the file, including alibabacloud and CTX.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 03
The file has a valid code signature from Rainberry Inc.
ProvenanceObservedSourceCode-signing metadataObserved at - 04
Scanned file: utorrent — e2837e13d80e4602b0c2d711c6d6c17217f4a80c8ff0b33dd90df219f025f3b7
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Users\<USER>\Desktop\program.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — "C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\utorrent.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: System.dll — C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\System.dll
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: nsislog.txt — C:\Users\<USER>\AppData\Local\Temp\nskB1FB.tmp\nsislog.txt
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 44.216.234.183 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: 3.225.226.96 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
Category: pua
One or more independent reference databases matched this hash.
Signatures and behavior heuristics
A community signature or high-severity behavioral heuristic matched. Signatures identify known patterns; heuristics are strong leads but are not proof on their own.
- Detect_NSIS_Nullsoft_Installer
- PE_Digital_Certificate
- shellcode
The saved runtime evidence maps this activity to MITRE T1055 (Process Injection). The mapping supports possible process injection, but it does not prove the exact injection method or the operator's intent.
EvidenceC:\Windows\Explorer.EXEThe sample contacted an external IP address directly and no application domain was recorded. Direct-IP traffic also occurs in legitimate installers and infrastructure, so this is supporting context only and requires corroboration from host reputation and other runtime evidence.
Evidence44.216.234.183 · 3.225.226.96 · 82.221.103.246
16 of 75 engines flagged this file
View all 75 engine results
Section entropy & packers
No high-entropy executable section or known packer signature was detected. Data and resource sections can still have high entropy without indicating packed code.
How widely this file has been seen
Moderate prevalence — neither rare nor common. No strong prior applies.
Fingerprint and provenance
- File name
- utorrent
- Format
- Win32 EXE
- Code signing
- Signature valid: Rainberry Inc
- Size
- 3.7 MB
- Last analyzed
- Sep 7, 2026, 12:11 PM UTC
e2837e13d80e4602b0c2d711c6d6c17217f4a80c8ff0b33dd90df219f025f3b7Safety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
We couldn't fully clear this file. Treat it with caution.
- Recovery step 01
Don't open it unless you're certain it came from a source you trust.
- Recovery step 02
Check where you got it — an unexpected attachment or a random download link is a red flag.
- Recovery step 03
If its origin cannot be confirmed, delete this file and use a fresh copy from a trusted source. Get a fresh copy from the original trusted source and verify its exact hash when possible.
- Recovery step 04
If you're still unsure, scan it again in a day or two — detections often catch up on newer files.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is utorrent safe, or is it malware?
What is utorrent?
How many antivirus engines detected utorrent?
I already downloaded and opened utorrent — what should I do?
How do I remove utorrent?
What kind of malware is utorrent?
Is utorrent digitally signed?
What is the SHA-256 hash of utorrent?
How up to date is this analysis of utorrent?
Community
Member reviews and reports for this exact file hash.