Is BlueStacksInstaller.exe safe?
Unsigned installer flagged by six tier-1 engines as MSILZilla-family trojan with matching imphash history.
Six tier-6 engines (BitDefender, Emsisoft, GData, Ikarus, Microsoft, Symantec) label the file MSILZilla or Wacatac variants. Similar imphash samples previously returned malicious verdicts. The file is unsigned and contacted an external IP with no domain recorded.
3231279e78e005d59f…71beb32232bb01Recommended next actions
Before running
Do not run it. Delete this file from the device, then empty the Recycle Bin or Trash.
If you already ran 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.
Six tier-6 engines (BitDefender, Emsisoft, GData, Ikarus, Microsoft, Symantec) label the file MSILZilla or Wacatac variants. Similar imphash samples previously returned malicious verdicts. The file is unsigned and contacted an external IP with no domain recorded.
The engine set shows clear tier-1 consensus on a named family despite the weak single-engine family-consensus flag. Unsigned status removes any trusted-publisher defense. Two of five similar imphash files were previously classified malicious under the same framework. Direct-IP contact without domain reputation adds a supporting but non-decisive signal. No sandbox malice verdict or dropped malicious children were observed, yet the tier-1 detections outweigh these neutral findings.
What We Detected
22 of 76 engines flagged the sample, including six tier-1 detections naming MSILZilla or Wacatac families. The executable is unsigned and carries an installer-style filename. Sandbox execution recorded one direct-IP connection (162.159.36.2) and several ambient system queries.
Threat Behavior
MSILZilla variants are commonly delivered through trojanized installers. The observed direct-IP traffic and lack of domain usage are consistent with minimal C2 patterns, though host reputation data is unavailable. No persistence mechanisms or dropped children were recorded in the single sandbox run.
What To Do Now
Do not execute the file. Keep endpoint protection enabled and delete or quarantine the sample. If the file was downloaded from an official BlueStacks source, verify the SHA-256 against the vendor site before trusting any copy.
Where this verdict could be wrong1 caveat
- contactedHosts is null — no complete host-reputation cross-check available for 162.159.36.2
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- No malicious sandbox verdict returned
- Medium prevalence, not brand-new
- No dropped malicious children
- 6 tier-1 engines flag MSILZilla/Wacatac families
- Unsigned executable
- Imphash matches previously classified malicious
- Direct-IP contact without domain recorded
Treat as malicious; avoid execution and remove the file.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete22 of 76 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial1 runtime contact was observed without a completed reputation cross-check.
YARA
Complete1 signature or behavior rule 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
- 13MITRE ATT&CK techniques
- 5spawned processes
- 1network contacts
- 17filesystem & mutex artifacts
What this file does
Observed actions and their security significance
Moderate concern: Communicated over a common application protocol; malware can use this for command-and-control.
Moderate concern: Scans through your files and folders.
Moderate concern: Decoded or unpacked concealed content while running.
Moderate concern: Checked the environment for virtualisation or analysis tools.
Note: Reads your Windows user-account details.
Note: Listed running processes; both legitimate software and malware may do this.
Note: Collects details about your system.
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
BlueStacksInstaller.exe
3231279e78e005d59fa65fee67cbe57a23892299af209b690071beb32232bb01
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Users\<USER>\Desktop\BlueStacksInstaller.exe"
02Isolated runtime analysis - ProcessObserved
Observed process
dw20.exe -x -s 848
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
Temp
C:\ProgramData\Microsoft\Windows\WER\Temp
04Isolated runtime analysis - Written fileObserved
920bb59d-874d-4279-9119-263bfc499439
C:\ProgramData\Microsoft\Windows\WER\Temp\920bb59d-874d-4279-9119-263bfc499439
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
162.159.36.2
Contact observed during runtime.
06Isolated runtime analysis
6 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.
- 162.159.36.2
- C:\ProgramData\Microsoft\Windows\WER\Temp
- C:\ProgramData\Microsoft\Windows\WER\Temp\920bb59d-874d-4279-9119-263bfc499439
- C:\ProgramData\Microsoft\Windows\WER\ReportQueue
- C:\ProgramData\Microsoft\Windows\WER\Temp\426025f6-3b4d-4d8a-8419-d7da6a567c09
- C:\ProgramData\Microsoft\Windows\WER\ReportArchive
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERF462.tmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERF81C.tmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERF462.tmp.WERInternalMetadata.xml
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERF81C.tmp.xml
- Global\AmiProviderMutex_InventoryApplicationFile
- Global\a639dcb5-868a-4b31-b2fe-b516c301be96
- 0x0
- Global\冰˾
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Evidence integrity
Chain of custody for the facts preserved in this report.
- 1rule hit recorded
- 22 / 76engines flagged
- 4sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
22 of 76 antivirus engines flagged the file, including ALYac and APEX.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
The hash has been submitted 4 times from 4 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 03
Scanned file: BlueStacksInstaller.exe — 3231279e78e005d59fa65fee67cbe57a23892299af209b690071beb32232bb01
ProvenanceObservedSourceUploaded fileObserved at - 04
Observed process — "C:\Users\<USER>\Desktop\BlueStacksInstaller.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 05
Observed process — dw20.exe -x -s 848
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
File written: Temp — C:\ProgramData\Microsoft\Windows\WER\Temp
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: 920bb59d-874d-4279-9119-263bfc499439 — C:\ProgramData\Microsoft\Windows\WER\Temp\920bb59d-874d-4279-9119-263bfc499439
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
Contacted host: 162.159.36.2 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
Category: generic-trojan
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for this hash.
Signatures and behavior heuristics
Low-severity pattern matches — worth noting but not on their own cause for alarm.
The 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.
Evidence162.159.36.2
22 of 76 engines flagged this file
View all 76 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
- BlueStacksInstaller.exe
- Format
- Win32 EXE
- Code signing
- No verified publisher
- Size
- 503.5 KB
- Last analyzed
- Aug 14, 2026, 10:24 AM UTC
3231279e78e005d59fa65fee67cbe57a23892299af209b690071beb32232bb01Safety & 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 run this file. Delete this file from the device, then empty the Recycle Bin or Trash.
- Recovery step 02
If you already ran 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
Get a fresh copy from the developer's official site or an official app store.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is BlueStacksInstaller.exe a virus?
What is BlueStacksInstaller.exe?
How many antivirus engines detected BlueStacksInstaller.exe?
What should I do if I already ran BlueStacksInstaller.exe?
How do I remove BlueStacksInstaller.exe?
What kind of malware is BlueStacksInstaller.exe?
What is the SHA-256 hash of BlueStacksInstaller.exe?
How up to date is this analysis of BlueStacksInstaller.exe?
Community
Member reviews and reports for this exact file hash.