Also, I would say it's far more likely someone would just hijack the download. For one thing, getting executables signed is trivial and while it may not match the Malwarebytes signature exactly it will be good enough to fool most (especially if you have the backing of a state actor). Notes, but a digital signature is not bulletproof either. That's why you check the digital signature, because that's far harder to spoof (and if a malicious actor were to use a DNS poisoning attack or similar method, they could just as easily show a spoofed version of the Malwarebytes site, which would be far more likely than just redirecting the download). Not saying this is bulletproof either, but every little bit helps. For the price of 10 seconds worth of work Malwarebytes can provide us with another way to check these files. Verifying the integrity of a file you download from a site is paramount to staying safe online. In this scenario the bad actor doesn't need to have compromised Malwarebytes's servers, they just need to have compromised the user's DNS settings (or their router). While it may be possible for bad actors to get access to Malwarebytes' entire network and have free reign to do as they please, it is far more likely that someone with a compromised DNS is trying to download the setup file and is served an infected file from another server entirely. You're not wrong the issue is that in any instance where the software has been hacked/hijacked/modified by a malicious actor and reuploaded to the servers for distribution, they'd already have the necessary access to alter the textual content of the download page as well, meaning the hashes would still match, making the illegitimate copy of the software look legit. Note that if I submit the same MBSetup.exe v4.1.1.190 to the MD5 File online hash calculator at, it calculates the same unique SHA-256 hash (d1b822f717f3309973a94dda715c2c4b963d8714f477314f2b0827b834b7c16b) as the VirusTotal site.Ħ4-bit Win 10 Pro v1909 build 18363.1139 * Firefox 82.0.2 * Windows Defender v.7 * Malwarebytes Free v4.2.2.95-ĭell Inspiron 15 5584, Intel GHz, 8 GB RAM, Toshiba KBG40ZNS256G NVMe SSD, Intel UHD Graphics 620 Edited Novemby lmacri Jiangmin (an antivirus I'm not familiar with) is the only virus scanner that flags that MBSetup.exe as potentially unsafe/harmful, which tells me the sole Jaingmin detection is likely a false positive that can be safely ignored. In this case, the MBSetup.exe file I downloaded is reported as safe by 70 of 71 different virus engines, so I can be confident that particular MBSetup.exe installer is safe to use. exe file to the site at, VirusTotal calculates the unique SHA-256 hash of that file (d1b822f717f3309973a94dda715c2c4b963d8714f477314f2b0827b834b7c16b) and then submits that SHA-256 hash to multiple virus engines (Bitdefender, Kaspersky, McAfee, etc.) for analysis. If I save the latest Windows version of MBSetup.exe v4.1.1.190 from to my desktop and then upload that. Malwarebytes for Windows will open once the installation completes successfully. Save all your work and click OK when you are ready to reboot.Īfter the reboot, you will have the option to re-install the latest version of Malwarebytes for Windows. To uninstall all Malwarebytes Products, click the Clean button. Please attach the file in your next reply. To provide logs for review click the Gather Logs buttonĪ file named mbst-grab-results.zip will be saved to your Desktop Anonymously help the community by providing usage and threat statistics: Unchecking this option will prevent Malwarebytes Support Tool from sending anonymous telemetry data on usage of the program.It is not recommended to use any Repair System options unless instructed by a Malwarebytes Support agent. Repair System: Includes various system-related repairs in case a Windows service is not functioning correctly that Malwarebytes for Windows is dependent on.All user configurations and other data are removed. The Premium license key is backed up and reinstated. Clean: Performs an automated uninstallation of all Malwarebytes products installed to the computer and prompts to install the latest version of Malwarebytes for Windows afterwards.The information is saved to a file on the Desktop named mbst-grab-results.zip and can be added as an email attachment or uploaded to a forum post to assist with troubleshooting the issue at hand. As part of this process, Farbar Recovery Scan Tool (FRST) is run to perform a complete diagnosis. Gather Logs: Collects troubleshooting information from the computer.The Advanced menu page contains four categories: Place a checkmark next to Accept License Agreement and click Next You may be prompted by User Account Control (UAC) to allow changes to be made to your computer. Endpoint Detection & Response for Serversĭouble-click mb-support-X.X.X.XXXX.exe to run the program
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