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Verdict Suspicious

Analyzed , 24 days ago

Is 7zipInstall.exe safe? Treat it as suspicious.

Only APEX flagged this common installer, but an unsigned executable, one ransomware-themed YARA match, and conflicting sandbox findings warrant source verification.

Read the whole reasonShow less

Why Suspicious? One antivirus engine (APEX) flags it and one sandbox test run rated it malicious while another found nothing.

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

If it came from a link, an attachment or a stranger, delete it.

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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7zipInstall.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

1 of 71 flagged

  • Flagged 1
  • No detection 70
  • No result 4
File7zipInstall.exe1.7 MBSHA-256 0859c524b8a6…9e6edd
  • Code signing Unsigned
  • Test run Completed
  • First seen 1mo ago
A sandbox test run rated its behaviour as malicious.

Chapter 02

Why we think so

5 points against it and 5 in its favour, checked against the scan evidence.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

Analyst conclusion

Only 1 of the 71 antivirus engines that checked it detected the file, and that detection came from less reliable APEX while all 17 major antivirus engines remained silent. However, the executable is unsigned, one sandbox produced a malware finding, and YARAify matched VECT_Ransomware, so use only a copy obtained from the official release channel.

Where this verdict could be wrong5 caveats
  • The less reliable-only antivirus pattern normally favors a false positive, with 17 major antivirus engines reporting no detection.
  • The single YARAify VECT_Ransomware match and malicious sandbox result are counter-signals, although neither has independent family-level corroboration.
  • No dropped file is known to be malicious, but all 10 child verdicts are unknown rather than affirmatively benign.
  • No contacted-host reputation result was saved, so no complete host-reputation cross-check is available.
  • Community annotations are contaminated by instruction-like text and contain conflicting sandbox claims, so they were downweighted.

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 not needed or not applicable. See every source

Chapter 03

What it did in our test

It ran in our isolated test environment; 1 test environment rated what it did as risky.

Test run summary

Capture complete
  • 19sandbox rule tags
  • 2spawned processes
  • 0network contacts
  • 27filesystem & 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: Unpacked hidden content while it ran.

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

  • Note: Read basic details of the test computer, such as its Windows version.

  • Note: Looked through folders on the test computer (most installers do this).

  • 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 contacting a server, but no contacted host was recorded.

  • Not confirmed: A sandbox rule tagged this run as changing how Windows loads code; 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.

Seen in the test runWorked out from other results

  1. Input file

    The submitted object

    1
    1. Evidence 1 of 5: FileSeen in the test run

      7zipInstall.exe

      0859c524b8a63551848f0c246abddcb1d0b7b656b0fbfe879f8d85e61a9e6edd

      Uploaded file

  2. Processes

    What ran

    2
    1. Evidence 2 of 5: ProcessSeen in the test run

      7z2603-x64.exe

      "C:\Users\user\Desktop\7z2603-x64.exe"

      Test run
    2. Evidence 3 of 5: ProcessSeen in the test run

      software.exe

      "C:\Users\user\Desktop\software.exe"

      Test run
    3. +1 more recorded observation

  3. Files

    Created or changed

    2
    1. Evidence 4 of 5: Written fileSeen in the test run

      7-zip.chm

      C:\Program Files\7-Zip\7-zip.chm

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

      descript.ion

      C:\Program Files\7-Zip\descript.ion

      Test run
    3. +1 more recorded observation

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

Chapter 04

Technical details

1 of the 71 antivirus engines that checked it flags 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.

SourceStatusResultChecked
Antivirus enginesVirusTotal · 75 enginesCompleteWorth noting: 1 of 71 engines flagged it · 4 gave no result Details for antivirus engines
Sandbox runVirusTotal sandboxesCompleteWorth noting: Combined summary is split: malicious and clean verdicts Details for sandbox run
Contacted hostsMalwareTips URL scannerNot neededThe sandbox recorded no contacted hosts to checkNo date recorded
Signature rulesYARAify community rules + MalwareTips rulesComplete1 community YARA rule (generic only) Details for signature rules
Malware sample databaseabuse.ch MalwareBazaarCompleteNot listed
Known-software referenceCIRCL hashlookupCompleteNo match

Engines that flagged it 1

  • APEXMalicious

File fingerprint

Last analyzed
Oct 2, 2026, 3:17 AM UTC
SHA-256
0859c524b8a63551848f0c246abddcb1d0b7b656b0fbfe879f8d85e61a9e6edd
SHA-1
9eff75f1f9c2786a1807a220f3cd0f5279b45f5d
MD5
ece29f11bca82d84b4f06a0b73f127dc

About this file

7zipInstall.exe is a Win32 EXE file of 1.7 MB.

Type and size
Win32 EXE · 1.7 MB
Signer
UnsignedNo code signature.
First seen
Sep 4, 2026On VirusTotal.
Submitted by
3,717 distinct sources
Packer
None detected
Entropy
5.67 of 8

First scanned Updated

Chapter 05

Questions & answers

Short answers to the 6 questions people ask most about this file.

Is 7zipInstall.exe safe, or is it malware?
7zipInstall.exe is rated Suspicious: some signs point to a problem, but nothing confirms it is harmful. 1 of the 71 antivirus engines that checked it flags 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 7zipInstall.exe?
7zipInstall.exe is a Windows program, about 1.7 MB. It carries no version information saying what it is or who made it. VirusTotal first saw it on Sep 4, 2026.
How many antivirus engines detected 7zipInstall.exe?
1 of the 71 antivirus engines that checked it flags 7zipInstall.exe (APEX). We weigh which engines flagged it and what else the scan found, not just the count.
I already downloaded and ran 7zipInstall.exe — what should I do?
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.
What is the SHA-256 hash of 7zipInstall.exe?
The SHA-256 fingerprint of 7zipInstall.exe is 0859c524b8a63551848f0c246abddcb1d0b7b656b0fbfe879f8d85e61a9e6edd, and its MD5 is ece29f11bca82d84b4f06a0b73f127dc. 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 7zipInstall.exe?
This report reflects the scan on Oct 2, 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

Other files people checked with the same name, and recent reports with the same rating. A matching name does not make two files the same: only the SHA-256 fingerprint identifies a file.

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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.