Upd: what it is and how to remove it
Upd malware is a trojan horse identified as Trojan.Kryptic.AD that records keystrokes and takes screenshots. The infection primarily spreads through spam email and P2P networks.
Facts checked October 5, 2026. Removal steps tested on Windows 11 (26H2) and checked against Microsoft's and the browser makers' current documentation. Sections marked as our earlier report are the original text: they describe the threat as it was then and have not been reviewed since. The 2026 status, the removal steps and the questions are current.
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Upd: summary
| Distribution | Spreads as software cracks or fake updates on P2P networks or enters the system via spam emails |
|---|---|
| Name | Upd |
| Type | Trojan horse |
| Also known as | Trojan.Kryptic.AD |
| File | Upd.exe |
| Danger level | High. It can make changes in the system |
| Removal | Scan the PC with security software to find and remove the malware and anything installed with it. Fortect scans Windows for malware and repairs the system files and settings it damaged. Remove it nowTo use the full-featured product, you have to purchase a license for Fortect. The scan is free. |
Show 9 more facts
| Compatible OS | Windows 10/8/7/XP |
|---|---|
| Size | 57 344 bytes |
| Detection names | No Microsoft detection name is known |
| Damage | Not recorded in the old report |
| Symptoms | An unknown process in Task Manager |
| Evidence | 4 write-ups by security sites; details still limited |
| File names | Upd.exe and C:\Program |
| First seen | 8 August 2018 |
| Facts checked | 5 October 2026 |
What Upd does on an infected PC
From our report of Aug 2018 · not reviewed since
Upd is a malicious program which belongs to Trojan.Kryptic.AD infection
Upd is a Trojan horse which is often identified as Trojan.Kryptic.AD by antivirus tools.
Usually, this malicious program can sneak into the system as Upd.exe file via spam emails, or together with rogue software downloads. Experts report that this cyber threat might record keystrokes, take desktop screenshots or run bogus commands on the system . Thus, users should remove Upd if it is detected on their computers.
Upd.exe Trojan mostly targets Windows operating systems. According to the analysis, Upd.exe resides in C:\Program Files\Common Files directory where it takes up to 57 344 bytes of space. Although, experts report that this malicious program can also infect Mac computers.
Keep in mind that Upd.exe is an executable file, yet it doesn't open a visible window once executed. Thus, regular computer users can only detect it running in the Task Manager. The biggest concern about Upd is that it might perform the following malicious activities:
If you fail to detect Upd.exe virus in time, this program might be used to gather private information. In other terms, Upd.exe Trojan can record your credentials or online banking details and upload them to a remote server which is controlled by cybercriminals.
Therefore, users are advised to stay cautious and remove Upd.exe immediately. Since Trojan horses are capable of hiding their malicious components across the system, people should employ reliable antivirus tools for the elimination procedure. We suggest using .
Be aware that it is essential to keep an eye on your bank account after Upd.exe removal. In case the malware managed to gather your credentials and passwords, they might be exploited in the future. Thus, report all unauthorized transactions to avoid financial losses and reset passwords right away.
- Record and collect keystrokes;
- Take screenshots of the desktop;
- Access browsing history;
- Send the collected information to remote hackers.


From our report of Aug 2018 · not reviewed since
More from our earlier report on Upd
- You can terminate Upd.exe and uninstall the Trojan horse with
How Upd got on your PC
From our report of Aug 2018 · not reviewed since
Commonly, people are highly eager to obtain legitimate software for free.
Likewise, they search for software cracks or free updates on less than reliable sites or P2P file-sharing pages. Unfortunately, this is one of the most common attack vectors how criminals manage to infiltrate malicious programs on the targeted systems.
Usually, they create legitimate-looking files which disguise Trojan horses and deceive inexperienced computer users. Therefore, it is vital to download applications only from verified websites. Additionally, be aware of malicious spam email attachments which can also hide the malware inside.
How to check the PC for Upd
- Path:
C:\Program - File:
Upd.exe
How to remove Upd
A loader's job is to install other malware, so treat the PC as infected with more than one program until the scans are clean.
Step 1: Check where Upd.exe runs from and stop it
In Task Manager (Ctrl + Shift + Esc) find
Upd.exeon Processes, right-click it and choose Open file location before ending anything.Windows' own files live in
C:\Windows\System32; the same name in%AppData%, %Temp% or C:\Users\Public is an impostor. If the folder is wrong, right-click the process again, choose End task and delete the file.If it starts again within seconds, a task or another process restarts it, so run the scan step in Safe Mode. Task Manager works the same in Windows 11 and Windows 10.
Full procedure with screenshots: Close a frozen app (Task Manager, Force Quit) On uGetFix
Step 2: Delete scheduled tasks that bring it back
Programs like Upd add a scheduled task so they return after an uninstall or reopen a page at every sign-in. Start Task Scheduler, open Task Scheduler Library and sort by Last Run Time to see what ran recently.
On the Actions tab, a program in a user folder, a script or a web address is a warning sign; right-click such a task and choose Delete.
Tasks with names copying Google, Edge or Windows updaters but pointing to an odd folder are typical. The tool looks the same in Windows 11 and Windows 10.

Windows 11: Task Scheduler Library, the task selected, the Actions tab shows the file it runs. Full procedure with screenshots: Remove what malware leaves behind in Windows
Step 3: Remove it from startup
Press Ctrl + Shift + Esc to open Task Manager and select Startup apps (Windows 11) or the Startup tab (Windows 10). Disable entries you do not recognise, especially ones with no publisher or with a name that copies a Windows component.
Right-click an entry and choose Open file location to see where it runs from: programs in
%AppData%or%Temp%deserve a closer look. Some entries are not listed there but in the registry Run keys, which the procedure below shows how to check.Full procedure with screenshots: Stop apps from opening at startup On uGetFix
Step 4: Delete the folders left behind
Uninstalling often leaves the program's folders, and some threats reinstall themselves from them.
Press Windows + R, type
%LocalAppData%and press Enter, then do the same for%AppData%and %ProgramData%, and look for folders named after Upd, its publisher or created on the day the problem started. Delete those folders, and check C:\Program Files and C:\Program Files (x86) too.If Windows says a file is in use, end it in Task Manager or delete the folder after a restart in Safe Mode. The folders are the same in Windows 11 and Windows 10.
Full procedure with screenshots: Remove what malware leaves behind in Windows
Step 5: Scan the PC, then run the offline scan
A scan finds the parts of Upd that the manual steps cannot see. In Windows Security > Virus & threat protection > Scan options, start a Full scan and quarantine what it reports.
Follow it with Microsoft Defender Antivirus (offline scan) > Scan now, which restarts the PC and checks the disk while Windows and the malware are not running.
It takes about 15 minutes and works the same in Windows 11 and Windows 10. If either scan finds something, run the full scan again after removal until it comes back clean.

Windows 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
Step 6: Change passwords from another device and sign out other sessions
Upd can copy saved passwords, cookies and session tokens and send them out in seconds, so cleaning the PC does not undo the theft.
Change your passwords on a device that was never infected, starting with the e-mail account, since every other reset goes through it. On each account, end all other sessions and check the recovery e-mail, phone number and forwarding rules.
Then turn on two-step verification. Sign in on the Windows 11 or Windows 10 PC again only after the offline scan is clean.
Full procedure with screenshots: Turn on two-step verification / secure a hacked account
Instructions for each browser and system
The detailed steps for every browser and system this guide covers. Open the one you use.
Manual removal using Safe Mode
Important! →
Manual removal guide might be too complicated for regular computer users. It requires advanced IT knowledge to be performed correctly (if vital system files are removed or damaged, it might result in full Windows compromise), and it also might take hours to complete. Therefore, we highly advise using the automatic method provided above instead.
Step 1. Access Safe Mode with Networking
Manual malware removal should be best performed in the Safe Mode environment.
Windows 7 / Vista / XP
- Click Start > Shutdown > Restart > OK.
- When your computer becomes active, start pressing F8 button (if that does not work, try F2, F12, Del, etc. - it all depends on your motherboard model) multiple times until you see the Advanced Boot Options window.
- Select Safe Mode with Networking from the list.

Windows 10 / Windows 8
- Right-click on Start button and select Settings.

- Scroll down to pick Update & Security.

- On the left side of the window, pick Recovery.
- Now scroll down to find Advanced Startup section.
- Click Restart now.

- Select Troubleshoot.
- Go to Advanced options.

- Select Startup Settings.

- Press Restart.
- Now press 5 or click 5) Enable Safe Mode with Networking.

Step 2. Shut down suspicious processes
Windows Task Manager is a useful tool that shows all the processes running in the background. If malware is running a process, you need to shut it down:
- Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
- Click on More details.

- Scroll down to Background processes section, and look for anything suspicious.
- Right-click and select Open file location.

- Go back to the process, right-click and pick End Task.

- Delete the contents of the malicious folder.
Step 3. Check program Startup
- Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
- Go to Startup tab.
- Right-click on the suspicious program and pick Disable.

Step 4. Delete virus files
Malware-related files can be found in various places within your computer. Here are instructions that could help you find them:
- Type in Disk Cleanup in Windows search and press Enter.

- Select the drive you want to clean (C: is your main drive by default and is likely to be the one that has malicious files in).
- Scroll through the Files to delete list and select the following:
Temporary Internet Files
Downloads
Recycle Bin
Temporary files - Pick Clean up system files.

- You can also look for other malicious files hidden in the following folders (type these entries in Windows Search and press Enter):
%AppData%
%LocalAppData%
%ProgramData%
%WinDir%
After you are finished, reboot the PC in normal mode.
From our report of Aug 2018 · not reviewed since
Upd.exe Trojan removal guidelines
Unfortunately, regular computer users are not experienced enough to remove Upd.exe on their own.
Merely terminating the process in the Task Manager won't help you to get rid of the infection permanently. In fact, it would just stop Trojan's activity for a short period of time.
For permanent Upd.exe removal, you must disable the infection in the first place. For that, we suggest using instructions which are appended below. Once Upd.exe virus is inactive, you will be able to download and install a professional malware removal tool.
Researchers note that it is vital to pick a reliable and robust antivirus. Thus, we highly recommend using , , or .
[GI=method-1]Explaining how to boot the system into Safe Mode with Networking:
[GI=method-2]Alternative way how to reboot the computer into Safe Mode with Command Prompt:
After removal: passwords, accounts and prevention
Secure your accounts after the clean-up
Assume that whatever was saved in the browsers on this PC while the PC showed an unfamiliar process called Upd.exe in Task Manager has been copied:
- passwords
- cookies
- autofill data
Work from a clean device, or from this PC once the offline scan finds nothing.
Start with your main e-mail account, because it can reset everything else, then banking and payment, then social and gaming accounts. Change each password, sign out of all sessions and turn on two-step verification: Turn on two-step verification / secure a hacked account.
The full order, including crypto wallets and card replacement, is in securing your accounts after malware.
Protect your privacy - employ a VPN
There are several ways how to make your online time more private - you can access an incognito tab.
However, there is no secret that even in this mode, you are tracked for advertising purposes. There is a way to add an extra layer of protection and create a completely anonymous web browsing practice with the help of VPN. This software reroutes traffic through different servers, thus leaving your IP address and geolocation in disguise.
Besides, it is based on a strict no-log policy, meaning that no data will be recorded, leaked, and available for both first and third parties. The combination of a secure web browser and VPN will let you browse the Internet without a feeling of being spied or targeted by criminals.
No backups? No problem. Use a data recovery tool
If you wonder how data loss can occur, you should not look any further for answers - human errors, malware attacks, hardware failures, power cuts, natural disasters, or even simple negligence.
In some cases, lost files are extremely important, and many straight out panic when such an unfortunate course of events happen. Due to this, you should always ensure that you prepare proper data backups on a regular basis.
If you were caught by surprise and did not have any backups to restore your files from, not everything is lost. is one of the leading file recovery solutions you can find on the market - it is likely to restore even lost emails or data located on an external device.
Questions about Upd
What is Upd malware?
It is a trojan horse identified as Trojan.Kryptic.AD by antivirus tools. The malicious program usually sneaks into systems as Upd.exe through spam emails or bundled with rogue software downloads.
This Windows-specific threat resides in C:\Program Files\Common Files directory occupying approximately 57,344 bytes of space. Experts report it can record keystrokes, take desktop screenshots, or run bogus commands on infected systems. Although primarily targeting Windows, reports indicate it can also infect Mac computers.
Is Upd.exe a legitimate Windows file?
No, Upd.exe is not a legitimate Windows process. It is a genuine trojan executable despite sometimes appearing in system folders designed to convince users of its legitimacy. Do not trust its location or appearance.
The file is malicious and should be removed immediately upon detection. Windows does not use Upd.exe for any legitimate system function. Any detection of this executable indicates trojan infection requiring professional removal.
What can Upd malware do?
The trojan can take screenshots of your entire desktop capturing sensitive information displayed on screen. It performs keystroke logging to record everything you type including passwords, usernames, and personal messages.
The malware can run bogus commands on your system executing malicious instructions. Collected information including bank credentials gets uploaded to remote servers controlled by cybercriminals. This gathered data enables identity theft, unauthorized account access, and financial fraud.
How does Upd.exe enter computers?
The malware primarily distributes through spam emails containing executable attachments. Rogue software downloads bundled with malicious payloads commonly deliver the infection. Peer-to-peer file-sharing networks distribute trojans disguised as software cracks or free program updates.
Users searching for free software updates or cracks on unreliable sites become prime targets. Criminals disguise trojan files to appear legitimate while deceiving inexperienced computer users.
How do I remove Upd.exe trojan?
Use professional anti-malware software to perform a complete system scan that automatically detects and removes the infection. Simply terminating the process in Task Manager provides only temporary relief as the malware will reactivate.
Download and run malware removal tools only after rebooting into Safe Mode with Networking. After removal, employ additional repair tools to fix virus damage and corrupted system files. Verify complete removal with another scan before returning to normal operation.
What banking damage can Upd cause?
The trojan records your online banking details and credentials through keystroke logging. It captures screenshots showing your banking transactions and account information. All gathered financial data gets uploaded to remote criminal servers.
Your bank account remains vulnerable to unauthorized transactions even after trojan removal. Cybercriminals exploit stolen credentials for fraudulent purchases and wire transfers. It is critical to monitor bank accounts closely after Upd.exe removal.
What should I do after Upd removal?
Monitor your bank account closely for unauthorized transactions and report any suspicious activity immediately. Contact your bank to alert them of potential credential compromise. Reset all passwords for banking, email, and important accounts using a clean computer.
Change passwords even if you have not noticed fraudulent activity. Consider placing fraud alerts on your credit report. Run regular security scans to ensure no lingering malware remains on the system.
How can I prevent Upd trojan infection?
Download applications exclusively from verified and official websites. Avoid searching for software cracks or free updates on unreliable peer-to-peer services. Never download programs advertised through suspicious pop-ups or spam emails.
Be cautious opening email attachments from unknown senders. Maintain updated anti-malware software and run regular system scans. Keep your operating system and software patched with the latest security updates to prevent vulnerabilities.
Will Fortect remove Upd?
Fortect scans Windows for malware and unwanted programs and repairs the system files and settings they change, and its free scan shows what it finds on your PC before you decide anything.
For Upd, follow the plan above as well: the browser steps take back permissions and settings that no scanner treats as a threat, and uninstalling the program that brought it removes the source.
Run Microsoft Defender's full scan and, if anything was found, its offline scan as a second opinion. If the symptoms are gone after the plan and both scans are clean, there is nothing more to do.
Sources
- LosVirus: LosVirus (read October 5, 2026)
- FTC: How to recognize, remove and avoid malware (read October 5, 2026)
- Microsoft Learn: Microsoft Defender Offline (read October 5, 2026)
- Microsoft Learn: How Microsoft names malware (read October 5, 2026)