File scan report
Verdict Suspicious
Is not_ malware. exe safe? Treat it as suspicious.
One detection from a major antivirus engine on an unsigned executable with no further corroboration.
Why Suspicious? One antivirus engine (Microsoft) flags it; nothing else confirms it.
Limited evidence
Treat the file as untrusted until further engine or sandbox evidence appears.
What to do now4 steps
Some signs point to a problem, but nothing confirms it is harmful. Treat it with caution.
What to do
Don't run it unless you're sure where it came from.
Check where you got it: an unexpected attachment, a link someone sent you or a re-upload is a red flag.
If you can't confirm where it came from, delete it. If you need the program, download it again from the publisher's own website.
If you already ran it
Stop using it, run a full scan with your antivirus and watch for unexpected behavior or security alerts.
Not sure what to do?
Ask the MalwareTips community before you run it. If you already ran it, follow the cleanup guide.
- Ask for free help on the MalwareTips forumWindows malware removal help, answered by volunteers. (opens malwaretips.com in a new tab)
- Remove malware from WindowsStep-by-step cleanup with free tools. (opens malwaretips.com in a new tab)
Paste this report's link in your topic so helpers can see what was found.
Reads the latest antivirus results for this file's hash. Nothing is uploaded.
Antivirus results
1 of 69 flagged
- Flagged 1
- No detection 68
- No result 6
- Code signing Unsigned
- Test run Partial
- First seen 1mo ago
Chapter 02
Why we think so
3 points against it and 2 in its favour, checked against the scan evidence.
The reasoning behind this verdict
One major antivirus engine flagged the file as Trojan:Win32/Wacatac.B!ml while 68 others returned clean. The sample is unsigned, appeared when we scanned it on Sep 5, 2026, and has no sandbox or external-intel results.
A lone major detection without family consensus is insufficient for a malicious verdict, yet the complete absence of signing, zero prior history, and rarity keep the file out of the safe category. Similar-hash matches are weak because they involve signed installers. No runtime or external-intel data exists to resolve the ambiguity.
What We Detected
Microsoft flagged the sample as Trojan:Win32/Wacatac.B!ml; 68 of the 69 antivirus engines that checked it returned clean. The file is a 150 kB unsigned 64-bit PE submitted for the first time today.
Threat Behavior
No sandbox execution data, no contacted hosts, and no external-intel hits are available. The single detection remains uncorroborated.
What To Do Now
Do not run the file. Keep security software enabled and wait for more evidence or sandbox results before trusting it.
- 68/69 engines clean
- no sandbox malicious verdict
- unsigned executable
- rare and prevalence
- one detection from a major antivirus engine
6 sources checked · 4 complete · 1 partial · 1 not needed or not applicable. See every source
Chapter 03
Technical details
1 of the 69 antivirus engines that checked it flags it; no publisher signature.
Sources checked
Every check behind this verdict
6 sources checked · 4 complete · 1 partial · 1 not needed or not applicable. Complete means the check returned a usable result; it does not mean the file is safe.
Engines that flagged it 1
- Microsoft (major engine)Trojan:Win32/Wacatac.B!ml
File fingerprint
- Last analyzed
- Sep 5, 2026, 4:27 PM UTC
- SHA-256
108ef649b237d592d960d2a8009c37792c73f09dbaccd3d91b24574c9786a5a5- SHA-1
dfa8378d03c6f94e4495d51b3a05d781a7ee5c28- MD5
8b8eae90c27c43790bca7a8adb9c08f3
About this file
not_malware.exe is a Win32 EXE file of 150.8 kB.
- Type and size
- Win32 EXE · 150.8 kB
- Signer
- UnsignedNo code signature.
- First seen
- Sep 5, 2026On VirusTotal.
- Submitted by
- 1 sourceRarely seen: few people have submitted this exact file.
- Packer
- None detected
- Entropy
- 3.62 of 8
First scanned
Antivirus consensus
1 of 69 engines flagged this file
6 of the 75 engines returned no result for this file (file type not supported, or the scan did not finish), so they did not check it.
- Tier-117 engines1flagged
- Tier-235 engines0flagged
- Low-trust17 engines0flagged
View all 75 engine results
- MicrosoftMalicious: Trojan:Win32/Wacatac.B!ml
- AcronisClean
- AhnLab-V3Clean
- AlibabaClean
- alibabacloudClean
- ALYacClean
- Antiy-AVLClean
- APEXClean
- ArcabitClean
- AvastClean
- Avast-MobileNo result
- AVGClean
- AviraClean
- BitDefenderClean
- BitDefenderFalxNo result
- BkavClean
- CAT-QuickHealClean
- ClamAVNo result
- CMCClean
- CrowdStrikeClean
- CTXClean
- CylanceClean
- CynetClean
- DeepInstinctClean
- DrWebClean
- ElasticClean
- EmsisoftClean
- ESET-NOD32Clean
- F-SecureClean
- FortinetClean
- GDataClean
- GoogleClean
- GridinsoftClean
- huorongClean
- IkarusNo result
- JiangminClean
- K7AntiVirusClean
- K7GWClean
- KasperskyClean
- KingsoftClean
- LionicClean
- MalwarebytesClean
- MaxSecureClean
- McAfeeDClean
- MicroWorld-eScanClean
- NANO-AntivirusClean
- PaloaltoClean
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighClean
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisClean
- TencentClean
- TrapmineClean
- TrellixENSClean
- TrendMicroClean
- TrendMicro-HouseCallClean
- TrustlookNo result
- VaristClean
- VBA32Clean
- VIPREClean
- VirITClean
- ViRobotClean
- WebrootClean
- XcitiumClean
- YandexClean
- ZillyaClean
- ZoneAlarmClean
- ZonerClean
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
Rarely uploaded, and first seen more than two weeks ago. Often niche legitimate software or internal tooling; not a strong malware signal on its own.
Chapter 04
Questions & answers
Short answers to the 6 questions people ask most about this file.
Is not_malware.exe safe, or is it malware?
What is not_malware.exe?
How many antivirus engines detected not_malware.exe?
What should I do if I already ran not_malware.exe?
What is the SHA-256 hash of not_malware.exe?
How up to date is this analysis of not_malware.exe?
Community
Member reviews and reports for this exact file hash.