Is userbruteforce.bat safe?
Batch file flagged as hacktool by three tier-1 engines with direct-no complete contacted-host reputation result was available signer.
16 of 73 engines detect the file, three of them tier-1, all labeling it a hacktool. Sandbox and host-reputation checks returned no malicious verdict, yet the consistent hacktool naming across high-trust engines outweighs the missing runtime confirmation.
c590a29c60e051e319…60e45fea6b412eRecommended 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.
16 of 73 engines detect the file, three of them tier-1, all labeling it a hacktool. Sandbox and host-reputation checks returned no malicious verdict, yet the consistent hacktool naming across high-trust engines outweighs the missing runtime confirmation.
The combination of tier-1 detections, explicit hacktool labels, and the filename itself points to offensive tooling rather than a false positive. The single sandbox run and clean host cache provide some counterweight, but they do not override the multi-engine consensus on a confirmed hacktool. Because hacktoolConfirmed is true, policy requires a malicious verdict regardless of operator intent.
What We Detected
Three tier-3 engines (BitDefender, Emsisoft, GData) plus Kaspersky and ESET-NOD32 flag the 2.3 KB DOS batch file as HackTool.BAT.Agent or Trojan.GenericKD.78246436. The filename userbruteforce.bat and the triggered Direct-IP heuristic reinforce the hacktool classification.
Threat Behavior
The script exhibits ambient MITRE techniques (T1064 scripting, T1071 application-layer protocol, T1082 system information discovery) but no offensive techniques. It contacted 20 external IPs without domain names; the contacted-host cache returned no malicious entries and the sandbox produced no malicious verdict.
What To Do Now
Do not execute the file. Keep endpoint protection enabled. If the script is required for legitimate administrative testing, run it only in an isolated lab environment after review.
Where this verdict could be wrong1 caveat
- contactedHosts.inspected=1 with 0 malicious hosts and behaviour.hasMaliciousSandboxVerdict=false — no runtime confirmation of malicious activity.
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
- No malicious child files
- no complete contacted-host reputation result was available in cache
- Multiple tier-1 hacktool detections
- Filename implies brute-force activity
- Direct-IP traffic without domains
Treat the file as malicious and block or remove it; the hacktool classification is corroborated by multiple high-trust engines.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete16 of 73 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial1 of 21 contacted hosts were cross-checked; coverage is incomplete.
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
- 6MITRE ATT&CK techniques
- 7spawned processes
- 21network contacts
- 2filesystem & 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: Communicates over the network in a non-standard way.
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 hacktools are abused
This is a hacking or cracking tool — the kind used to bypass software licences, generate fake keys, or attack other systems. Even when the tool 'works', these downloads very often carry hidden malware.
Bottom line:Running one means trusting an anonymous author with full access to your PC — rarely worth the risk.
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
userbruteforce.bat
c590a29c60e051e31982044314ec2e62d74236ef4defa8861760e45fea6b412e
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Windows\system32\cmd.exe" /c start /wait "" "C:\Users\<USER>\Desktop\run.bat"
02Isolated runtime analysis - ProcessObserved
Observed process
C:\Windows\system32\cmd.exe /K "C:\Users\<USER>\Desktop\run.bat"
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
Connect
\Device\ConDrv\\Connect
04Isolated runtime analysis - Written fileObserved
Null
\Device\Null
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
104.76.210.28
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
104.76.210.25
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.
- 104.76.210.28
- 104.76.210.25
- 17.248.195.66
- 17.248.200.68
- 17.248.195.65
- 184.25.37.196
- 17.253.21.202
- 192.229.211.108
- 17.57.144.151
- 17.253.7.202
- http://ocsp.usertrust.com/ME8wTTBLMEkwRzAHBgUrDgMCGgQUzTDSTDQ6gqsfBXAVitehB3YpkukEFFN5v1qqK0rPVIDh2JvAnfKyA2bLAhBd+ruVd8+rZx/H3f7RzyBb
- \Device\ConDrv\\Connect
- \Device\Null
Files this sample writes at runtime
This file drops 1 child at runtime. None are currently flagged malicious in our cache.
- 0e1aaba4f916257f6206…ba7a50Never 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.
- 1rule hit recorded
- 16 / 73engines flagged
- 104sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
16 of 73 antivirus engines flagged the file, including alibabacloud and ALYac.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
The hash has a long, established submission history across 104 sources.
ProvenanceDerivedSourceSubmission historyObserved at - 03
The hash has been submitted 125 times from 104 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 04
Scanned file: userbruteforce.bat — c590a29c60e051e31982044314ec2e62d74236ef4defa8861760e45fea6b412e
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Windows\system32\cmd.exe" /c start /wait "" "C:\Users\<USER>\Desktop\run.bat"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — C:\Windows\system32\cmd.exe /K "C:\Users\<USER>\Desktop\run.bat"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: Connect — \Device\ConDrv\\Connect
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: Null — \Device\Null
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 104.76.210.28 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: 104.76.210.25 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
Category: hacktool
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for this hash.
Signatures and behavior heuristics
Behavioral heuristics matched patterns associated with malware. Corroborating evidence determines how much weight they carry.
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.
Evidence104.76.210.28 · 104.76.210.25 · 17.248.195.66
16 of 73 engines flagged this file
View all 73 engine results
PE structure
Not applicablePE structure analysis applies to Windows executable formats, not this file type.
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
- userbruteforce.bat
- Format
- DOS batch file
- Code signing
- Not applicable to this file type
- Size
- 2.3 KB
- Last analyzed
- Aug 18, 2026, 10:01 AM UTC
c590a29c60e051e31982044314ec2e62d74236ef4defa8861760e45fea6b412eSafety & 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 userbruteforce.bat malware?
What is userbruteforce.bat?
How many antivirus engines detected userbruteforce.bat?
I already downloaded and ran userbruteforce.bat — what should I do?
How do I remove userbruteforce.bat?
What kind of malware is userbruteforce.bat?
What is the SHA-256 hash of userbruteforce.bat?
How up to date is this analysis of userbruteforce.bat?
Community
Member reviews and reports for this exact file hash.