2 weeks ago - Spectre is a class of speculative execution CPU vulnerabilities that involve side-channel attacks, first discovered in 2017. There are multiple variants that affect modern microprocessors capable of performing branch prediction and other forms of speculative execution. On most processors, the speculative execution resulting from a branch misprediction may leave observable side effects that may reveal private data to attackers. For example...

The Spectre attack [1] has received massive coverage since the beginning of 2018, and by now, it is likely that everyone in computer science has at least heard about it. Spectre exploits the fact that speculative execution resulting from a branch misprediction may reveal private data to an attacker.

September 16, 2025 - Malware Viruses Ransomware Phishing Scams Hacking Other Threats Passwords Business Security Tips See all Security articles ... Browser IP Address VPN Streaming Identity Protection Dark Web Digital Life Privacy Tips See all Privacy articles ... Originally discovered in June 2017 and still plaguing us today, Meltdown and Spectre are two of the world’s most widespread hardware vulnerabilities.

February 1, 2022 - But in all that cases, the successful data lead required to have an “infected” page located on the same domain. For example, stealing a Tumblr password involves uploading malicious Javascript code to another page on the same social network.

March 29, 2023 - Spectre and Meltdown are representative examples of “transient execution” attacks, which rely on hardware design flaws in the implementation of speculative execution, instruction pipelining, and out-of-order execution in modern CPUs.

January 9, 2018 - Understand how this virus or malware spreads and how its payloads affects your computer. Protect against this threat, identify symptoms, and clean up or remove infections.

Meltdown breaks the mechanism that keeps applications from accessing arbitrary system memory. Consequently, applications can access system memory. Spectre tricks other applications into accessing arbitrary locations in their memory. Both attacks use side channels to obtain the information from the accessed memory location.

As a third example of exploiting conditional branches, we developed a reliable proof-of-concept which leaks kernel · memory from an unmodified Linux kernel without patches · against Spectre by abusing the eBPF (extended BPF) interface.

January 20, 2023 - DarkCrystal, Nyan Worm, Strigoi Master, and Elephant are some examples of other remote access trojans. Since the Spectre RAT is offered for sale online, how exactly it is spread depends on the cyber criminals using it.

February 26, 2024 - In particular, Voisin said he found a Linux Spectre exploit capable of dumping the contents of /etc/shadow, a Linux file that stores details on OS user accounts. Such behavior is clearly malicious; however, there is no evidence that the exploit was used in the wild, as it could have also been uploaded on VirusTotal by a penetration tester as well.

March 2, 2021 - As Google found, Spectre also affects major operating systems, including Windows, Linux, macOS, Android, and ChromeOS. Since its discovery, the hardware bug has received firmware patches and software fixes from all major processor and OS vendors. Voisin found the two working Linux and Windows exploits on the online VirusTotal ...

May 4, 2021 - Speculative execution happens when a computer processor does some work it might need later, instead of waiting until it knows it definitely needs it. What emerged in 2018 is that speculative execution opens the possibility of side-channel attacks. Spectre-based attacks trick a program into accessing arbitrary locations in a program’s memory space.

Github.com has compiled a list ... and Spectre vulnerabilities for both operating systems and web browsers: https://github.com/hannob/meltdownspectre-patches. Remember to always use good security practices for the care of your electronic devices, such as protecting your passwords/passphrases; running anti-virus software; ...

August 17, 2018 - What is NetSpectre? To perform Spectre attacks, malware would have to run on a targeted machine to extract sensitive data. But in late July, Austrian security researchers found a way to launch Spectre-style attacks remotely without locally installed malware.

These vulnerabilities were discovered by researchers at Google’s Project Zero, a team that’s dedicated to finding security flaws before they can be exploited by attackers; as of now there are currently no known Meltdown or Spectre exploits in existence.

It only adds instructions for the OS to reset the branch predictor when switching between processes. Full mitigation of within process Spectre would require disabling branch prediction all together. Leading to Intel Atom <2013 speeds, at approximately 1/6th of the performance you have now. ... @HenkPoley The example is about in-process exploits.

surprising as new versions of Spectre were released in May, ... FlushReload.A!tr" virus.

July 11, 2025 - In recent years, a serious security issue known as Spectre has affected most modern processors. Discovered alongside another vulnerability called Meltdown, Spectre takes advantage of the way processors speed up tasks through features like branch prediction and speculative execution.