Is Luczystrap.dll safe?
Two high-trust detections, a malicious sandbox assessment, and 22 researcher YARA matches outweigh the absence of strong family consensus and offensive runtime techniques.
Kaspersky and Ikarus are among 6 of 74 engines flagging this unsigned executable, while a completed sandbox issued a malware assessment. Twenty-two researcher YARA matches add substantial corroboration, although the family attribution remains uncertain because the high-trust engines disagree and most engines did not detect it.
d71c31057677bc392f…5a14f7cc352424Recommended next actions
Before using
Do not use it. Quarantine this component with your antivirus, then repair or reinstall the parent software from its official source. Do not delete or replace the component manually.
If you already used it
Disconnect from the internet, start a full or offline antivirus scan, then secure important accounts from a clean device.
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.
Kaspersky and Ikarus are among 6 of 74 engines flagging this unsigned executable, while a completed sandbox issued a malware assessment. Twenty-two researcher YARA matches add substantial corroboration, although the family attribution remains uncertain because the high-trust engines disagree and most engines did not detect it.
Six of 74 engines flagged the file, including two independent high-trust detections, so the alerts cannot be dismissed as low-trust noise. Kaspersky associated it with Convagent, but Ikarus used SuspectCrc and there is no strong tier-1 family consensus, making the precise family attribution uncertain. One completed sandbox produced a malware assessment, while the recorded runtime techniques were ambient and no malware-exclusive technique was identified. The 22 YARAify matches, including an injection-oriented rule and anti-debugging rules, provide strong independent static corroboration. The unsigned status and three prior suspicious imphash matches add concern, though the imphash-only matches are weak because they lack a signer co-match. No complete contacted-host reputation check is available.
What We Detected
Six of 74 antivirus engines flagged the sample. Two were high-trust detections: Kaspersky reported HEUR:Trojan.MSIL.Convagent.gen, while Ikarus reported Win32.SuspectCrc. The disagreement means Convagent is the leading family name rather than a firmly established consensus.
Threat Behavior
One completed sandbox issued a malware assessment. The observed techniques were all ambient, with behaviour.offensiveCount=0, and no persistence indicators or network contacts were recorded during that run. However, externalIntel.yaraify.ruleCount=22 includes CP_Script_Inject_Detector and anti-debugging rules, materially strengthening the concern. Ten dropped children were inspected without a confirmed malicious child, but their individual verdicts remained unknown.
What To Do Now
Do not execute or load this file on a production system. Keep endpoint protection enabled, quarantine the sample, and obtain a fresh copy only from a verified official source if the software is required. Systems where it already ran should receive a full security scan and review of related processes and files.
Where this verdict could be wrong5 caveats
- 15 of 17 tier-1 engines did not flag the file, and tier1FamilyConsensus.strong=false; the two high-trust detections do not agree on one family.
- behaviour.offensiveCount=0, no persistenceIndicators were recorded, and the completed run listed no contacted domains, IPs, or URLs.
- droppedChildren.hasMaliciousChild=false, although all 10 inspected children retained unknown verdicts rather than confirmed clean results.
- prevalence.uniqueSources=1723 and prevalence.timesSubmitted=2124 indicate broad, established circulation rather than a newly observed sample.
- peAnalysis.highEntropyCode=false and peAnalysis.likelyPacked=false provide no static packing signal.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 15 of 17 tier-1 engines did not flag the file
- No strong tier-1 family consensus
- No malware-exclusive runtime techniques were recorded
- No confirmed malicious dropped child among 10 inspected
- No high-entropy code or likely packing detected
- Two independent high-trust antivirus detections
- Completed sandbox produced a malware assessment
- Twenty-two researcher YARA rule matches
- Unsigned Windows executable with no signer history
- Kaspersky and Rising associate the sample with Convagent
- Negative file reputation of -4
Quarantine the file and do not run it outside an isolated analysis environment. Keep security protection enabled and scan any system where the sample was previously executed.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete6 of 74 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Not runNo contacted-host reputation check is recorded.
No timestamp recordedYARA
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
- 10MITRE ATT&CK techniques
- 2spawned processes
- 0network contacts
- 17filesystem & mutex artifacts
What this file does
Observed actions and their security significance
Moderate concern: Contained obfuscated or packed code that makes inspection harder.
Moderate concern: Removed execution artefacts or logs, which can conceal activity.
Moderate concern: Communicated over a common application protocol; malware can use this for command-and-control.
Note: Collects details about your system.
Note: Loads extra code modules while running.
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.
Threat context
How trojans work
A trojan disguises itself as something useful or harmless to trick you into running it. Once open, it does its real job in the background — anything from stealing data to opening a back door or downloading more malware.
Bottom line:The disguise is the whole trick, so a trustworthy-looking name or icon means nothing.
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
Luczystrap.dll
d71c31057677bc392f680c6303dcfda9fa8f366240284dac6d5a14f7cc352424
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Users\<USER>\Desktop\Luczystrap.exe"
02Isolated runtime analysis - ProcessObserved
Observed process
"C:\Users\user\Desktop\Luczystrap.exe"
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
License - Fira Code.txt
C:\Users\<USER>\AppData\Local\Temp\.net\Luczystrap\1b0c\License - Fira Code.txt
04Isolated runtime analysis - Written fileObserved
License - Fluent System Icons.txt
C:\Users\<USER>\AppData\Local\Temp\.net\Luczystrap\1b0c\License - Fluent System Icons.txt
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
5 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; 1 returned "malicious".
Adversary techniques mapped to the MITRE ATT&CK framework.
- HKEY_USERS\S-1-5-21-4270068108-2931534202-3907561125-1001\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.exe\OpenWithProgids\exefile
- C:\Users\<USER>\AppData\Local\Temp\.net\Luczystrap\1b0c\License - Fira Code.txt
- C:\Users\<USER>\AppData\Local\Temp\.net\Luczystrap\1b0c\License - Fluent System Icons.txt
- C:\Users\<USER>\AppData\Local\Temp\.net\Luczystrap\1b0c\License - Segoe Fluent Icons.txt
- C:\Users\<USER>\AppData\Local\Temp\.net\Luczystrap\1b0c\License - VirtualizingWrapPanel.txt
- C:\Users\<USER>\AppData\Local\Temp\.net\Luczystrap\1b0c\Luczystrap.dll
- C:\Users\<USER>\AppData\Local\Temp\.net\Luczystrap\1b0c
- Bloxstrap-Installer
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- 0aaee97f09d5416eb763…61a5eaNever scannednever seen before
- 9be360c19bf5502c7927…5bd381Never scannednever seen before
- 9e90ba20d2288ce1625e…01813fNever scannednever seen before
- 3eb591915f953d90d661…bea799Never scannednever seen before
- 70f111f0a6d0e4869c4b…676bcbNever scannednever seen before
- eaefcec287b085437ad7…b836f2Never scannednever seen before
- b9255f132f91fc741e9d…fbe912Never scannednever seen before
- c20450faf22fd56ef7e6…ce649aNever scannednever seen before
- 52acc4263db7979d5090…ff53b6Never scannednever seen before
- e8450bfde8eac7dfc2aa…3fbc87Never 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
- 6 / 74engines flagged
- 1,723sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
1 isolated runtime environment classified the observed behavior as malicious.
Verdict inputView chapterProvenanceObservedSourceIsolated runtime analysisObserved at - 02
5 high-confidence signature or behavior rules matched this file.
Verdict inputView chapterProvenanceObservedSourceSignature and behavior rulesObserved at - 03
6 of 74 antivirus engines flagged the file, including Bkav and Google.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 04
Scanned file: Luczystrap.dll — d71c31057677bc392f680c6303dcfda9fa8f366240284dac6d5a14f7cc352424
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Users\<USER>\Desktop\Luczystrap.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — "C:\Users\user\Desktop\Luczystrap.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: License - Fira Code.txt — C:\Users\<USER>\AppData\Local\Temp\.net\Luczystrap\1b0c\License - Fira Code.txt
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: License - Fluent System Icons.txt — C:\Users\<USER>\AppData\Local\Temp\.net\Luczystrap\1b0c\License - Fluent System Icons.txt
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
Category: generic-trojan
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.
- Any_SU_Domain
- Check_OutputDebugStringA_iat
- CP_Script_Inject_Detector
- DebuggerCheck__API
- DebuggerCheck__MemoryWorkingSet
6 of 74 engines flagged this file
View all 74 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
Widely seen in the wild for a long time. High prior this is legitimate; isolated detections on common-old files are usually false positives.
Fingerprint and provenance
- File name
- Luczystrap.dll
- Format
- Win32 EXE
- Code signing
- No verified publisher
- Size
- 70.9 MB
- Last analyzed
- Sep 30, 2026, 1:19 PM UTC
d71c31057677bc392f680c6303dcfda9fa8f366240284dac6d5a14f7cc352424Safety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
This file is dangerous. Treat it as harmful and remove it.
- Recovery step 01
Don't use this component. Quarantine this component with your antivirus, then repair or reinstall the parent software from its official source. Do not delete or replace the component manually.
- Recovery step 02
If you already used it, disconnect from the internet and start with a full antivirus scan or Microsoft Defender Offline scan. If compromise is suspected or the problem persists, use a reputable second-opinion scanner and follow incident-recovery or clean-reinstall guidance.
- Recovery step 03
If you typed any passwords while it was open, change them from a device you trust.
- Recovery step 04
Reinstall the parent software from the developer's official site instead of replacing this component by itself.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is Luczystrap.dll a virus?
What is Luczystrap.dll?
How many antivirus engines detected Luczystrap.dll?
What should I do if I already used Luczystrap.dll?
How do I remove Luczystrap.dll?
What kind of malware is Luczystrap.dll?
What is the SHA-256 hash of Luczystrap.dll?
How up to date is this analysis of Luczystrap.dll?
Community
Member reviews and reports for this exact file hash.