cpu

Tue
06
Nov
John Lister's picture

CPU Hyper-threading Reverse Engineered to Spy on Processes

One of the most useful features in computer hardware has a security flaw. It's to do with the way processors handle information. All computing tasks are reduced down to a set of calculations. The central processing unit (CPU) is the "brain" of the ... computer that physically carries out these calculations. Each modern-day CPU has one or more cores , which is essentially multiple "brains" on a single CPU chip. A multi-core CPU means that multiple calculations can be done at once, which reduces the time to carry out a task. Many processors also use a technique called ... (view more)

Wed
18
Jul
John Lister's picture

Chrome to become Slower, Use More Memory to Tackle Malware

Google is updating the Chrome browser to give it better defenses against major security threats. It comes at the price of reduced performance and a larger memory footprint. The changes are to address two security bugs labeled Meltdown and Spectre by ... researchers. They take advantage of a flaw in almost every computer processor built since 1995, which is (as of this day) 100% of all computers, tablets, smartphones, laptops - and anything else that uses a processor. The flaw is in regard to a processor feature, which is designed to speed up a computer's response time. It works by using spare ... (view more)

Thu
11
Jan
John Lister's picture

Intel and IBM Demo Quantum Computer at CES 2018

Intel and IBM are battling to show off some of the most advanced 'quantum computers' ever made. It's a big step towards incredibly powerful computers that could even replicate the workings of a human brain. A quantum computer takes advantage of one ... of the most curious aspects of physics: that tiny particles can exist in two different states at the same time. This essentially allows a complete rewrite of the mathematics behind computing. Ordinary computers work by turning data into binary code: a string of 0s and 1s. In traditional computers, that involves a series of electronic 'gates' that ... (view more)

Mon
08
Jan
Dennis Faas's picture

Can Malware (Spectre, Meltdown) Spy After Reboot?

In regard to last week's article on the Spectre and Meltdown CPU exploits, which affects 100% of all computers made since 1995, user 'rep' had the following question to ask: " Dear Dennis, [Being that this is a hardware exploit], am I right in ... thinking that any passwords, etc, which are stored in the CPU's memory are lost when the computer is shut down? If so, could I simply shut off the computer and reload it every time I want to use Internet banking and would that keep me safe from these exploits? " My response: I posted my original response in the comments section of Friday's article, but ... (view more)

Fri
05
Jan
Dennis Faas's picture

Spectre and Meltdown Exploits - What You Need to Know

Infopackets Reader Steve P. writes: " Dear Dennis, There has been a whirlwind of news on the Internet regarding the 'Spectre' and 'Meltdown' exploits that affect all microprocessors (CPUs) from 1995 and on. I am afraid my computer is at risk but I ... don't understand all the tecno-talk. Should I be worried? " My response: The short answer is: yes and no, mostly no (once patches are released). At the end of this article I'll offer advice on what you can do to stay protected. What does the Spectre and Meltdown Exploit Mean? I have been following the news for the last few days and here is what I ... (view more)

Fri
08
Sep
Dennis Faas's picture

How to Fix: Malwarebytes MBAMService.exe High CPU Usage

Infopackets Reader Ramona A. writes: " Dear Dennis, Recently My Windows 7 laptop kept popping up with ' Windows has detected that your computer's performance is slow ' error messages. I disabled the color scheme to fix the issue (as recommended) but ... the popups kept coming every 3 minutes or so. I suspected I was infected with malware, so I downloaded Malwarebytes Antimalware and did a scan. MBAM found over 1,700 'threats' - one of them was a rootkit. I quarantined all the items, then rebooted and things are much better, however - now the 'mbamservice.exe' is constantly causing high CPU load ... (view more)

Mon
31
Jul
Dennis Faas's picture

How to Fix: Remove SystemTask.exe / SystemTaskInfo.exe Virus (100% CPU Usage)

Infopackets Reader Michael B. writes: " Dear Dennis, Thank you so much for helping me to patch my Windows 2003 Server against the SMB attacks and for removing Windows_Update.exe virus a few weeks back . A have yet another problem that is causing ... high CPU usage! In Task Manager of Windows Server 2003, I see two processes that are eating 50% of my CPU each, namely: SystemTask.exe and SystemTaskInfo.exe . If I try and delete either process, it simply comes back and starts eating my CPU again, which makes everything else on the server painfully slow. Can you please help? " My response: I asked ... (view more)

Mon
26
Jun
Dennis Faas's picture

How to Fix: Remove Update_Windows.exe / Update.exe Virus (100% CPU Usage)

Infopackets Reader Mike B. writes: " Dear Dennis, I run a Windows Server 2003 box that has been fine until two days ago. Now, my CPU usage is 100% with multiple 'Update_Windows.exe' processes running. I've deleted the Update_Windows.exe tasks in ... Task Manager, but it keeps propagating. I did a virus scan, but it did not find anything; Malwarebytes antimalware also is not reporting anything. Prior to the infection, I installed the emergency May 2017 update to avoid the Windows SMB exploit / WannaCry ransomware infection . I understand Windows Server 2003 is no longer supported by Microsoft and ... (view more)

Fri
16
Jun
Dennis Faas's picture

How to Fix: IAStorDataMgrSvc High CPU Usage

Infopackets Reader Ian S. writes: " Dear Dennis, Recently I noticed through Task Manager that I have very high CPU usage, even with the computer idle. I looked at Task Manager and it says that 'IAStorDataMgrSvc' is eating 25% of my CPU constantly. I ... read that this is an Intel program and that my computer's BIOS may not be set up properly, which is causing the problem. I also read that if I set the BIOS improperly (in order to correct the issue), my computer may get stuck in a blue screen loop. I am afraid to make any changes for fear that it may screw something up. Can you help? " My response ... (view more)

Fri
02
Jun
Dennis Faas's picture

How to Fix: Bootable Prime95 to Stress Test Hardware

Infopackets Reader Peter M. writes: " Dear Dennis, I have a very strange issue. I recently put together a new computer build and installed Windows 10. Everything was working fine for the past month or so, then all the sudden, Windows 10 won't boot ... into the login screen - it simply freezes at the swirling dots. Surprisingly, I can remote desktop into the problematic machine from another, but the system stability doesn't last and eventually it freezes up on me. I suspect I have a hardware problem - perhaps the video card. I've managed to run 'msconfig' and specified Safe Mode with Networking, ... (view more)

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