by Malwarebytes · Proprietary
Cyber Security Software and Anti-Malware
There is a specific reason people want this one offline: you are cleaning a machine whose internet is broken, often because malware broke it. A web installer is no help when the network stack is the casualty.
The installer listed here is the full standalone package with its published hash, so you can download it on a working computer, copy it across on a USB stick and run it on the affected machine.
Verifying the hash matters more than usual in this scenario. If you are dealing with a compromised system, confirming the installer is authentic before you run it is the whole point.
If the computer you are fixing is compromised, anything you download on it may already be tampered with. Download on a machine you trust, check the SHA-256 there, then transfer the file.
These URLs are the ones Malwarebytes declares in its own manifest. We do not proxy or shorten them, and we do not host a copy.
More than one architecture below. Check which one your Windows is if you are not sure.
Run this against the file on disk. If the output does not match the hash below, the file is not what Malwarebytes published. Delete it.
Windows · PowerShell
Get-FileHash "MBSetup.exe" -Algorithm SHA256macOS · Linux
shasum -a 256 "MBSetup.exe"Expected output
56c6ac5f07cf1e4d374fb8e36e5316fa24b4ea055a9542252e41946769200a8c
Got a different hash, or one you cannot place? Paste it into the hash checker and it will tell you which program and version it belongs to, past releases included.
The unattended switch below is the one Malwarebytes declares in the installer manifest, not one we guessed by trying flags.
32-bit · machine scope · publisher-declared
.\MBSetup.exe /VERYSILENT /NORESTARTRun it from the folder holding the downloaded file, in a terminal opened as administrator when the package installs for all users. Silent means no window and no prompts, so check the exit code rather than waiting for something to appear: 0 is success and 3010 means it worked but wants a reboot.
Silent install commands for every program we index · silent uninstall
Every guide on this tells you to hunt for the product code with Get-WmiObject or in the registry. You do not need to: it is published in the installer manifest, and it is printed below.
Product code · 32-bit, 64-bit
{35065F43-4BB2-439A-BFF7-0F1014F2E0CD}_is1
Uninstall, with the usual prompts
msiexec /x {35065F43-4BB2-439A-BFF7-0F1014F2E0CD}_is1Silent, for deployment
msiexec /x {35065F43-4BB2-439A-BFF7-0F1014F2E0CD}_is1 /qn /norestartThe codes above belong to Malwarebytes 5.1.4.112, the version in our index. If you have an older release installed, its code is different and this command will report that the product is not installed. In that case run Get-Package -Name "Malwarebytes*" in PowerShell to read the code of what you actually have.
This removes the program as the publisher packaged it. Settings and files created after installation, typically under AppData, are deliberately left behind by the uninstaller and have to be deleted by hand if you want them gone.
Reinstalling and hitting error 1638? That is this same product code, and the command above is the fix.
Product codes for every program we index, with the msiexec switches and how to read the code off your own machine.
The macOS build as Homebrew declares it, with the same treatment as the Windows side: the publisher's own URL and a hash to check it against.
| Signal | Finding | Points |
|---|---|---|
| SHA-256 hash published | 2 of 2 installers ship a SHA-256 hashWithout a published hash there is no way to prove the file you downloaded is the file the publisher built. | 30 / 30 |
| Binary provenance | 2 on a domain owned by the publisherThe strongest signal against a repackaged installer: the file should come from the publisher, not from a mirror nobody vouches for. | 35 / 35 |
| Served over HTTPS | 2 of 2 over HTTPSAn installer fetched over plain HTTP can be modified in transit. | 15 / 15 |
| Licence declared | ProprietaryA declared licence tells you what you are actually allowed to do with the software. | 5 / 5 |
Yes, in the sense we can actually verify: the installer downloads from mbamupdates.com, which is a domain we have tied to Malwarebytes.
Every one of the 2 installers on this page comes with the SHA-256 Malwarebytes declared, so you do not have to take our word for it: hash the file you downloaded and compare.
What this does not tell you is whether the software itself is any good, or whether you want what it does once installed. A publisher can ship something you would rather not run and the download is still authentic. We answer the question we can measure and leave the other one to you.
If Windows says “Windows protected your PC” when you run it, that is SmartScreen reporting reputation, not a malware verdict — it shows up on perfectly legitimate software from small publishers and on releases that are simply new. The reverse matters more: no warning does not mean the file was checked.
How the 100/100 score is calculated · why the source matters more than the reputation
Windows ships with a package manager, and this program is in it. The identifier below is the one Microsoft's repository uses, which is also where the download URL and hash on this page come from.
Install
winget install --id Malwarebytes.Malwarebytes --exactUpgrade later
winget upgrade --id Malwarebytes.MalwarebytesWhy --exact: without it winget matches on name as well as identifier, and a search that returns more than one package makes it stop and ask rather than install. Pinning the identifier is what makes the command safe to put in a script.
Not installing anything, or getting an error back? The commands that actually come up covers upgrading everything at once, what --include-unknown is for, and why winget can be missing from a machine that should have it.
Every Malwarebytes version with a published manifest, newest first. The most recent ones are listed above with their file names and hashes.
Matched on the categories Malwarebytes and others declare in their own manifests, so the grouping is theirs rather than ours. Each one has its official URL and hash on the same terms as this page.
Not related to Malwarebytes — just other entries, each with its own official URL and published hash.