File scan report
Verdict Suspicious
Is Source Thread Fix safe? Treat it as suspicious.
A small unsigned Windows program flagged by 10 of the 70 antivirus engines that checked it, including several major ones, with generic labels and a process-hollowing behaviour…
Read the whole reasonShow less
Why Suspicious? 10 antivirus engines flag it and a test run recorded behaviour typical of malware.
Moderate evidence · More than one sign points to a problem, but nothing confirms it is harmful.
Avoid running this file unless you can confirm where it came from. Keep your antivirus enabled, and scan the system if the file has already been executed.
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
10 of 70 flagged
- Flagged 10
- No detection 60
- No result 5
- Code signing Unsigned
- Test run Completed
- First seen 3mo ago
Chapter 02
Why we think so
4 points against it and 3 in its favour, checked against the scan evidence.
The reasoning behind this verdict
Ten of the 70 antivirus engines that checked it flag this small unsigned executable, including Avira, Fortinet and Trend Micro, but only with generic labels and no named malware family. Sandbox behaviour was mapped to a process-hollowing technique, though no injected process was recorded. Treat it with caution.
The file is a 6,656-byte unsigned Windows executable, first seen on Jul 15, 2026. Every label is a generic or machine-learning bucket, though, and most major engines stayed silent. The sandbox summary mapped a process-hollowing technique, but no target process was recorded, so that remains an unconfirmed lead. With no signer, no reference-database entries and no named family, the evidence is hostile-leaning but not conclusive.
What We Detected
10 of the 70 antivirus engines that checked it flagged this unsigned executable. The detections include Avira and F-Secure (TR/Crypt.XPACK.Gen, both from one scan engine), Fortinet (W32/PossibleThreat), Trend Micro (Trojan.Win32.Gen) and CrowdStrike (60% confidence). All of the labels are generic, and no malware family is named. The antivirus analysis found no packer and normal section entropy.
Threat Behavior
The sandbox summary mapped activity to a process-hollowing technique (T1055.012), but no injected target process was recorded, so injection is not confirmed. No network contacts were recorded. A host-reputation check and a sandbox verdict were not available.
What To Do Now
Do not run this file unless you trust its source. If you have already run it, scan your system with your security software and keep protection enabled.
Where this verdict could be wrong3 caveats
- No detection names a malware family, and most major engines (Kaspersky, ESET, BitDefender, Microsoft-class major antivirus engines) reported nothing.
- The process-hollowing mapping has no recorded target process, so injection was not confirmed.
- The file has been submitted by over 100 sources without any public malware-database listing.
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 listing in public malware databases or community malware rules
- The file is not packed and has normal entropy
- Many major engines reported no detection
- Ten antivirus engines flag the file, including three independent major antivirus engines
- The file is an unsigned executable with no identifiable publisher
- Sandbox behaviour was mapped to a process-hollowing technique
- A small executable with a vague name and no version information
6 sources checked · 5 complete · 1 not needed or not applicable. See every source
Chapter 03
What it did in our test
It ran in our isolated test environment; no test environment rated what it did as risky.
Test run summary
Capture complete- 6sandbox rule tags
- 2spawned processes
- 0network contacts
- 0filesystem & mutex artifacts
What the test run showed
What the file did on a test computer
Confirmed in the test run
High concern: Injected code into another program on the test computer.
Moderate concern: Ran commands or a script on the test computer.
Note: Deleted files or logs during the test run (installers often clean up after themselves).
Note: Loaded extra code modules while running.
Sandbox labels we could not confirm (common in safe files too)
Not confirmed: A sandbox rule tagged this run as loading code in memory; nothing confirms it.
This file was run on a test computer (a sandbox), not on yours. Labels we could not confirm are listed so you can see them, but they are not treated as evidence against the file.
Recorded behavior
What happened in the test
Grouped by step. The order is not a timeline.
- 1
Input file
The submitted object
- Evidence 1 of 3: FileSeen in the test run
Source Thread Fix
701b84b1df352139acd6c518a206f1d37a55e07aa8ad44479b69d290434c0ab9
Uploaded file
- 2
Processes
What ran
- Evidence 2 of 3: ProcessSeen in the test run
program.exe
"C:\Users\<USER>\Desktop\program.exe"
Test run - Evidence 3 of 3: ProcessSeen in the test run
program.exe
"C:\Users\user\Desktop\program.exe"
Test run - +1 more recorded observation
3 facts from the test run. See the full activity list.
What this file did when executed
This file was run in a sandbox and its runtime behaviour was observed.
Techniques observed in the sandbox
6MITRE ATT&CK techniques the sandbox mapped. Highlighted ones are rare in normal software; the others are common in legitimate programs too.
- T1055.012· Process injection
- T1059· Runs commands
- T1070· Covers its tracks
- T1070.006· Covers its tracks
- T1129· Loads modules
- T1620· In-memory loading
Observed activity
Processes started
2Programs the file ran, with their command lines.
program.exe"C:\Users\<USER>\Desktop\program.exe"program.exe"C:\Users\user\Desktop\program.exe"
Chapter 04
Technical details
10 of the 70 antivirus engines that checked it flag it; no publisher signature.
Sources checked
Every check behind this verdict
6 sources checked · 5 complete · 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 10
- Avira (major engine)TR/Crypt.XPACK.Gen
- F-Secure (major engine)Trojan.TR/Crypt.XPACK.Gen
- Fortinet (major engine)W32/PossibleThreat
- TrendMicro-HouseCall (major engine)Trojan.Win32.Gen.TL0101GM26YD
- APEXMalicious
- CrowdStrikewin/malicious_confidence_60% (W)
- CynetMalicious (score: 100)
- DeepInstinctMALICIOUS
File fingerprint
- Last analyzed
- Aug 31, 2026, 7:02 PM UTC
- SHA-256
701b84b1df352139acd6c518a206f1d37a55e07aa8ad44479b69d290434c0ab9- SHA-1
912f8857b7500a44da453beb8af2b629033ec01b- MD5
77eca6e5075b17b26ecc7c87f164363e
About this file
Source Thread Fix is a Win32 EXE file of 6.7 kB.
- Type and size
- Win32 EXE · 6.7 kB
- Signer
- UnsignedNo code signature.
- First seen
- Jul 15, 2026On VirusTotal.
- Submitted by
- 103 distinct sources
- Packer
- None detected
- Entropy
- 4.26 of 8
First scanned Updated
Antivirus consensus
10 of 70 engines flagged this file
5 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.
The 10 detections come from 9 independent scan engines: several vendors license the same engine, so their results are one vote.
- Tier-117 engines3flagged4 vendors sharing 3 engines
- Tier-236 engines2flagged
- Low-trust17 engines4flagged
View all 75 engine results
- APEXMalicious: Malicious
- AviraMalicious: TR/Crypt.XPACK.Gen
- CrowdStrikeMalicious: win/malicious_confidence_60% (W)
- CynetMalicious: Malicious (score: 100)
- DeepInstinctMalicious: MALICIOUS
- F-SecureMalicious: Trojan.TR/Crypt.XPACK.Gen
- FortinetMalicious: W32/PossibleThreat
- MaxSecureMalicious: Trojan.Malware.1748823.susgen
- McAfeeDMalicious: Real Protect-LS!77ECA6E5075B
- TrendMicro-HouseCallMalicious: Trojan.Win32.Gen.TL0101GM26YD
- AcronisClean
- AhnLab-V3Clean
- AlibabaClean
- alibabacloudClean
- ALYacClean
- Antiy-AVLClean
- ArcabitClean
- AvastClean
- Avast-MobileNo result
- AVGClean
- BitDefenderClean
- BitDefenderFalxNo result
- BkavClean
- CAT-QuickHealClean
- ClamAVClean
- CMCClean
- CTXClean
- CylanceClean
- DrWebClean
- ElasticClean
- EmsisoftClean
- ESET-NOD32Clean
- GDataClean
- GoogleClean
- GridinsoftClean
- huorongClean
- IkarusNo result
- JiangminClean
- K7AntiVirusClean
- K7GWClean
- KasperskyClean
- KingsoftClean
- LionicClean
- MalwarebytesClean
- MicrosoftClean
- MicroWorld-eScanClean
- NANO-AntivirusClean
- PaloaltoClean
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighClean
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisClean
- TencentClean
- TrapmineClean
- TrellixENSClean
- TrendMicroClean
- TrustlookNo result
- VaristClean
- VBA32Clean
- VIPREClean
- VirITClean
- ViRobotClean
- WebrootClean
- XcitiumClean
- YandexClean
- ZillyaClean
- ZoneAlarmClean
- ZonerClean
Signatures and behavior heuristics
Behavioral heuristics matched patterns associated with malware. Corroborating evidence determines how much weight they carry.
The saved runtime evidence maps this activity to MITRE T1055.012 (a process-injection method VirusTotal does not map on clean files). It supports possible process injection, but no target process was recorded.
EvidenceT1055.012 (sandbox MITRE mapping)
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 uploaded, but first seen within the last six months. No strong prior applies.
Chapter 05
Questions & answers
Short answers to the 6 questions people ask most about this file.
Is Source Thread Fix safe, or is it malware?
What is Source Thread Fix?
How many antivirus engines detected Source Thread Fix?
I already downloaded and ran Source Thread Fix — what should I do?
What is the SHA-256 hash of Source Thread Fix?
How up to date is this analysis of Source Thread Fix?
Community
Member reviews and reports for this exact file hash.