Is saya.exe safe?
Unsigned executable with low-trust detections and process-injection indicators but no tier-1 consensus.
Two low-trust engines flagged the file; 17 tier-1 engines reported it clean. The sample is unsigned, shows T1055 process-injection behaviour, and contacts IPs directly. Long history and lack of tier-1 or sandbox malicious verdicts keep the risk moderate.
903f298556f45174ea…4b14af672105c2Recommended next actions
Before running
Do not run it until the source and publisher can be verified independently.
If you already ran it
Stop using it, scan the device, and watch for unexpected behavior or security alerts. Get a fresh copy from the developer's official site or an official app store.
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.
Two low-trust engines flagged the file; 17 tier-1 engines reported it clean. The sample is unsigned, shows T1055 process-injection behaviour, and contacts IPs directly. Long history and lack of tier-1 or sandbox malicious verdicts keep the risk moderate.
The engine profile matches the classic low-trust-only false-positive pattern, yet the unsigned status and confirmed T1055 activity prevent a clean classification. No tier-1 engine or external-intel source corroborates malice, and prevalence data indicate the file has circulated for over a decade. Because contacted-host reputation data are missing, the direct-IP traffic cannot be dismissed. The combination of static, behavioural, and coverage gaps produces a borderline mixed-signal assessment.
What We Detected
Two low-trust engines (APEX, Trapmine) returned generic malicious labels; 17 tier-1 engines remained silent. The binary is unsigned and exhibits MITRE T1055 process-injection calls plus direct-IP network traffic.
Threat Behavior
Runtime evidence shows the sample spawning child processes and writing temporary files, but sandbox verdicts were absent and no malicious children were dropped. External-intel sources (CIRCL, MalwareBazaar, YARAify) returned no hits.
What To Do Now
Keep endpoint protection enabled. If execution is required, run the file in an isolated virtual machine and monitor for unexpected outbound connections or process hollowing attempts.
Where this verdict could be wrong1 caveat
- communityComments[0] reports FileScan.IO verdict 'SUSPICIOUS' with 100/100 confidence, but this is a single third-party annotation without tier-1 corroboration.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 17 tier-1 engines reported clean
- common_old prevalence (432 sources since 2013)
- no tier-1 family consensus
- no malicious dropped children
- Unsigned PE
- T1055 process-injection technique observed
- Direct-IP network traffic without domain resolution
- contactedHosts reputation data unavailable
Treat as suspicious; do not execute on production systems until additional dynamic analysis or a signed vendor update is available.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete2 of 75 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial20 runtime contacts were observed without a completed reputation cross-check.
YARA
Complete2 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
- 14MITRE ATT&CK techniques
- 3spawned processes
- 20network contacts
- 36filesystem & 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.
Moderate concern: Contained obfuscated or packed code that makes inspection harder.
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: Checked the environment for virtualisation or analysis tools.
Moderate concern: Checks which security software you have installed.
Note: Listed running processes; both legitimate software and malware may do this.
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
saya.exe
903f298556f45174ea2dbeaf4a0aebe2986a54a47082fa2dbc4b14af672105c2
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
%SAMPLEPATH%\saya.exe
02Isolated runtime analysis - ProcessObserved
Observed process
C:\Windows\System32\wuapihost.exe
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
WER9066.tmp
C:\ProgramData\Microsoft\Windows\WER\Temp\WER9066.tmp
04Isolated runtime analysis - Written fileObserved
WER9066.tmp.csv
C:\ProgramData\Microsoft\Windows\WER\Temp\WER9066.tmp.csv
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
204.79.197.203
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
a83f:8110:0:0:1400:1400:2800:3800
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.
- 204.79.197.203
- a83f:8110:0:0:1400:1400:2800:3800
- 209.197.3.8
- a83f:8110:0:0:702:0:0:0
- 192.168.0.29
- 20.99.132.105
- 23.216.147.76
- 20.99.186.246
- 192.229.211.108
- 20.22.113.133
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER9066.tmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER9066.tmp.csv
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER92F7.tmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER92F7.tmp.txt
- C:\Users\user\AppData\Local\D3DSCache
- C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\Crypto\Keys\de7cf8a7901d2ad13e5c67c29e5d1662_cbbb49d6-b7ff-44ca-aba5-8a5e250d4d42
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER951.tmp.WERInternalMetadata.xml
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERA3C.tmp.csv
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERA7B.tmp.txt
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERD0C.tmp.WERInternalMetadata.xml
- \Sessions\1\BaseNamedObjects\Local\DirectSound DllMain mutex (0x00001CA8)
- \Sessions\1\BaseNamedObjects\NPS-0001
- \Sessions\1\BaseNamedObjects\Local\__DDrawExclMode__
- \Sessions\1\BaseNamedObjects\Local\__DDrawCheckExclMode__
- \Sessions\1\BaseNamedObjects\Local\DDrawWindowListMutex
Files this sample writes at runtime
This file drops 2 children at runtime. None are currently flagged malicious in our cache.
- 9a18cac27a08201b20f7…ca1c00Never scannednever seen before
- 7852fce59c67ddf1d6b8…011fbaNever 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.
- 2rule hits recorded
- 2 / 75engines flagged
- 432sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
1 high-confidence signature or behavior rule matched this file.
Verdict inputView chapterProvenanceDerivedSourceSignature and behavior rulesObserved at - 02
2 of 75 antivirus engines flagged the file, including APEX and Trapmine.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 03
The hash has a long, established submission history across 432 sources.
ProvenanceDerivedSourceSubmission historyObserved at - 04
Scanned file: saya.exe — 903f298556f45174ea2dbeaf4a0aebe2986a54a47082fa2dbc4b14af672105c2
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — %SAMPLEPATH%\saya.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — C:\Windows\System32\wuapihost.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: WER9066.tmp — C:\ProgramData\Microsoft\Windows\WER\Temp\WER9066.tmp
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: WER9066.tmp.csv — C:\ProgramData\Microsoft\Windows\WER\Temp\WER9066.tmp.csv
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 204.79.197.203 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: a83f:8110:0:0:1400:1400:2800:3800 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
The available sources did not agree on a named threat category.
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for 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.
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.
Evidence%SAMPLEPATH%\saya.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.
Evidence204.79.197.203 · a83f:8110:0:0:1400:1400:2800:3800 · 209.197.3.8
2 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
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
- saya.exe
- Format
- Win32 EXE
- Code signing
- No verified publisher
- Size
- 1.1 MB
- Last analyzed
- Sep 6, 2026, 1:17 PM UTC
903f298556f45174ea2dbeaf4a0aebe2986a54a47082fa2dbc4b14af672105c2Safety & 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 run 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 developer's official site or an official app store.
- 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 saya.exe safe, or is it malware?
What is saya.exe?
How many antivirus engines detected saya.exe?
I already downloaded and ran saya.exe — what should I do?
How do I remove saya.exe?
What is the SHA-256 hash of saya.exe?
How up to date is this analysis of saya.exe?
Community
Member reviews and reports for this exact file hash.