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Verdict Suspicious

Analyzed , 3 months ago

Is anvirrus.exe safe? Treat it as suspicious.

This signed NSIS installer is flagged by 14 of the 69 antivirus engines that checked it, mostly as a potentially unwanted IObit-related program, with no high-risk behaviour…

Read the whole reasonShow less

Why Suspicious? 14 antivirus engines flag it and a reference database lists it as malicious.

Moderate evidence · More than one sign points to a problem, but nothing confirms it is harmful.

Don't run it until you know where it came from

Do not install this program unless you deliberately sought it from a source you trust. If it appeared unexpectedly, remove it and run a full scan with your protection enabled.

What to do now4 steps

Some signs point to a problem, but nothing confirms it is harmful. Treat it with caution.

What to do

  1. Don't run it unless you're sure where it came from.

  2. Check where you got it: an unexpected attachment, a link someone sent you or a re-upload is a red flag.

  3. 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

  1. 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.

Paste this report's link in your topic so helpers can see what was found.

Why we think so

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anvirrus.exe: Suspicious — MalwareTips file scan

The link always shows the latest result for this exact file (its SHA-256 fingerprint).

Reads the latest antivirus results for this file's hash. Nothing is uploaded.

Antivirus results

14 of 69 flagged

  • Flagged 14
  • No detection 55
  • No result 5
Fileanvirrus.exe4.4 MBSHA-256 0bd3193b8d95…d1bcc7
  • Code signing Global Security Center
  • Test run Completed
  • First seen 5y ago
14 of the 69 antivirus engines that checked it flag it, including ESET and Sophos.

Chapter 02

Why we think so

3 points against it and 3 in its favour, checked against the scan evidence.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

Analyst conclusion

Several major antivirus engines, including ESET, Fortinet and DrWeb, label this installer a potentially unwanted or riskware program linked to IObit. It carries a valid signature from Global Security Center, a signer with almost no history with us, and the sandbox runs showed no high-risk techniques. It looks more like unwanted software than outright malware.

Where this verdict could be wrong2 caveats
  • The file is widely distributed and has been seen since 2021, and no high-risk behaviour in the test run was recorded, which argues against a backdoor.
  • Less reliable engines label it a backdoor and Sophos gives a generic malware label, so a more harmful payload cannot be fully excluded.

These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.

6 sources checked · 5 complete · 1 partial. 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
  • 27sandbox rule tags
  • 3spawned processes
  • 3network contacts
  • 40filesystem & mutex artifacts

What the test run showed

What the file did on a test computer

Confirmed in the test run

  • Moderate concern: Contains packed or scrambled code that is harder to inspect (common in installers too).

  • Moderate concern: Ran commands or a script on the test computer.

  • Moderate concern: Used an unusual way to talk to a server.

  • Moderate concern: Checked whether it was running on a test computer.

  • Note: Read the network settings of the test computer.

  • Note: Listed the programs running on the test computer.

  • Note: Talked to servers over the internet during the test run.

Sandbox labels we could not confirm (common in safe files too)

  • Not confirmed: A sandbox rule tagged this run as creating a scheduled task; none was recorded.

  • Not confirmed: A sandbox rule tagged this run as code injection, but no injected program was recorded.

  • Not confirmed: A sandbox rule tagged this run as creating a service; no new service was recorded.

  • Not confirmed: A sandbox rule tagged this run as setting up auto-start; no auto-start entry was recorded.

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.

Seen in the test runWorked out from other results

  1. Input file

    The submitted object

    1
    1. Evidence 1 of 7: FileSeen in the test run

      anvirrus.exe

      0bd3193b8d956fab39534d42c2c7768d7867085642e1128221265b69d0d1bcc7

      Uploaded file

  2. Processes

    What ran

    2
    1. Evidence 2 of 7: ProcessSeen in the test run

      program.exe

      "C:\Users\<USER>\Desktop\program.exe"

      Test run
    2. Evidence 3 of 7: ProcessSeen in the test run

      file.exe

      Test run
    3. +1 more recorded observation

  3. Files

    Created or changed

    2
    1. Evidence 4 of 7: Written fileSeen in the test run

      nskD775.tmp

      C:\Users\<USER>\AppData\Local\Temp\nskD775.tmp

      Test run
    2. Evidence 5 of 7: Written fileSeen in the test run

      nsc3.tmp

      C:\Documents and Settings\Administrator\Local Settings\Temp\nsc3.tmp

      Test run
    3. +1 more recorded observation

  4. Network

    Hosts contacted

    2
    1. Evidence 6 of 7: Contacted hostSeen in the test run

      72.21.81.240

      Contacted during the test run.

      Test run
    2. Evidence 7 of 7: Contacted hostSeen in the test run

      23.40.197.194

      Contacted during the test run.

      Test run
    3. +1 more recorded observation

7 facts from the test run. See the full activity list.

Chapter 04

Technical details

14 of the 69 antivirus engines that checked it flag it; signed by Global Security Center.

Sources checked

Every check behind this verdict

6 sources checked · 5 complete · 1 partial. Complete means the check returned a usable result; it does not mean the file is safe.

SourceStatusResultChecked
Antivirus enginesVirusTotal · 74 enginesCompleteRisk signal: 14 of 69 engines flagged it · 5 gave no result Details for antivirus engines
Sandbox runVirusTotal sandboxesCompleteRuntime behaviour was recorded Details for sandbox run
Contacted hostsMalwareTips URL scannerPartial2 of 11 contacted hosts were cross-checked; coverage is incomplete Details for contacted hosts
Signature rulesYARAify community rules + MalwareTips rulesComplete1 MalwareTips behaviour rule Details for signature rules
Malware sample databaseabuse.ch MalwareBazaarCompleteNot listed
Known-software referenceCIRCL hashlookupCompleteWorth noting: Listed in an open-upload malware feed

Engines that flagged it 14

  • DrWeb (major engine)Program.Unwanted.4485
  • ESET-NOD32 (major engine)Win32/IObit.BH potentially unwanted application
  • Fortinet (major engine)Riskware/IObit
  • Sophos (major engine)Mal/Generic-S
  • alibabacloudBackdoor:Win/Tinukebot.AC
  • Antiy-AVLGrayWare/Win32.IObit
  • CrowdStrikewin/grayware_confidence_90% (W)
  • CylanceUnsafe
6 more in the full engine list

File fingerprint

Last analyzed
Jul 25, 2026, 4:06 PM UTC
SHA-256
0bd3193b8d956fab39534d42c2c7768d7867085642e1128221265b69d0d1bcc7
SHA-1
f4f71527cb64e97d1c5b543b2984b48b3528a196
MD5
8072fb2063bf9a74d3d9c4e23e859064

About this file

anvirrus.exe is a Win32 EXE file of 4.4 MB.

Type and size
Win32 EXE · 4.4 MB
Signer
Global Security CenterValid code signature.
First seen
Aug 8, 2021On VirusTotal.
Submitted by
3,658 distinct sources
Packer
None detected
Entropy
8.00 of 8

First scanned Updated

Chapter 05

Questions & answers

Short answers to the 7 questions people ask most about this file.

Is anvirrus.exe safe, or is it malware?
anvirrus.exe is rated Suspicious: some signs point to a problem, but nothing confirms it is harmful. 14 of the 69 antivirus engines that checked it flag it. Don't run it unless you're sure where it came from. If you need the program, download it again from the publisher's own website.
What is anvirrus.exe?
anvirrus.exe is a Windows program, about 4.4 MB. It carries no version information saying what it is or who made it. VirusTotal first saw it on Aug 8, 2021.
How many antivirus engines detected anvirrus.exe?
14 of the 69 antivirus engines that checked it flag anvirrus.exe, including ESET and Sophos. We weigh which engines flagged it and what else the scan found, not just the count.
What should I do if I already ran anvirrus.exe?
No infection is confirmed: the rating is a caution, not a malware finding. 1) Check where it came from. If you can't confirm the source, delete it. 2) Run a full scan with your security software. 3) If the scan finds something, follow its removal steps and change passwords you typed on the device since then.
Is anvirrus.exe digitally signed?
Yes. anvirrus.exe has a valid digital signature from Global Security Center, which shows the file hasn't been changed since that publisher signed it. Malware is sometimes signed with stolen certificates, so a signature alone isn't proof of safety.
What is the SHA-256 hash of anvirrus.exe?
The SHA-256 fingerprint of anvirrus.exe is 0bd3193b8d956fab39534d42c2c7768d7867085642e1128221265b69d0d1bcc7, and its MD5 is 8072fb2063bf9a74d3d9c4e23e859064. Two files with the same SHA-256 are identical, so use it to check you have exactly this file, not just one with the same name.
How up to date is this analysis of anvirrus.exe?
This report reflects the scan on Jul 25, 2026. A file's fingerprint never changes, but antivirus engines keep learning, so a rating can change later. To get a newer result, scan the file again: we refresh the antivirus results when the saved ones are out of date.
Chapter 06

Community

Member reviews and reports for this exact file hash.

Related file reports

Recent reports on other files with the same rating.

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This report and its SHA-256 fingerprint are public, so the next person who checks the same file gets an instant answer; documents and images are listed by type instead of their file name. A file we had not seen before is uploaded to VirusTotal, whose security partners and subscribers can download it; MalwareTips deletes its own copy after the scan. If you ran this file and are worried, scan your device with up-to-date security software.