Antivirus software detects, blocks, and removes malicious code, helping reduce the risk of malware-driven data theft and system disruption.
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Background for this topic.
Antivirus software scans files and running processes to detect and remove malicious code such as viruses, worms, trojans, ransomware, and spyware. It uses signature databases, heuristic rules, and behavioral analysis to identify threats during real-time monitoring or scheduled scans. Regular updates to detection rules are necessary to recognize new malware variants and reduce false negatives.
While antivirus helps block many common malware infections on endpoints, it has limited effectiveness against advanced threats like fileless malware or attacks that evade signature detection. Security teams should combine antivirus with complementary tools such as endpoint detection and response (EDR) to improve visibility and threat hunting. Proper tuning is important to minimize false positives and performance impacts that can disrupt operations or obscure genuine alerts.
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ESET says factory outages, lost revenue, and supply chain disruption are becoming routine Nearly 80 percent of British manufacturers say they've been hit by a cyber incident in the past year, as new research suggests disruption on the factory floor is no longer an exception but business as usual.…
Follows suggestions iPhone-pwning toolset bears hallmarks of zero-days that targeted Russian diplomats Russian cybersecurity outfit Kaspersky is waving away claims that an iPhone exploit kit recently uncovered by Google was developed by the same people who were behind a group of zero-days that allegedly compromised thousands of Russian diplomats in a 2023 campaign.…
New ransomware of choice, same critical targets North Korea’s Lazarus Group appears to have added another tool to its kit. It has begun using Medusa ransomware in extortion attacks targeting at least one US healthcare organization and an unnamed victim in the Middle East, according to Symantec and Carbon Black threat hunters.…
eScan lawyers up after Morphisec claimed 'critical supply-chain compromise' A spat has erupted between antivirus vendor eScan and threat intelligence outfit Morphisec over who spotted an update server incident that disrupted some eScan customers earlier this month.…
All I want for Christmas … is all of your data A new, modular infostealer called SantaStealer, advertised on Telegram with a basic tier priced at $175 per month, promises to make criminals' Christmas dreams come true. It boasts that it can run "fully undetected" even on systems with the "strictest AntiVirus" and those belonging to governments, financial institutions, and other prime targets.…
State-backed crews are already poking at autonomous tools, Trend Micro warns Cybercriminals, including ransomware crews, will lean more heavily on agentic AI next year as attackers automate more of their operations, Trend Micro's researchers believe.…
Operation Cronos didn’t kill LockBit – it just came back meaner Trend Micro has sounded the alarm over the new LockBit 5.0 ransomware strain, which it warns is "significantly more dangerous" than past versions due to its newfound ability to simultaneously target Windows, Linux, and VMware ESXi environments. …
Old hotel scam gets an AI facelift, leaving travellers’ card details even more at risk Kaspersky has raised the alarm over the resurgence of hotel-hacking outfit "RevengeHotels," which it claims is now using artificial intelligence to supercharge its scams.…
Defrauding search with custom malware, Potato-family exploits A new China-aligned cybercrime crew named GhostRedirector has compromised at least 65 Windows servers worldwide - spotted in a June internet scan - using previously undocumented malware to juice gambling sites' rankings in Google search, according to ESET researchers.…
Oh, look, a use case for OpenAI's gpt-oss-20b model ESET malware researchers Anton Cherepanov and Peter Strycek have discovered what they describe as the "first known AI-powered ransomware," which they named PromptLock. …
PLUS: Crypto mixer founders plead guilty; Another French telco hacked; Meta fights WhatsApp scams; And more! Infosec In Brief A critical vulnerability in the on-prem version of Trend Micro's Apex One endpoint security platform is under active exploitation, the company admitted last week, and there's no patch available.…
'Plague' malware has been around for months without tripping alarms Researchers at German infosec services company Nextron Threat have spotted malware that creates a highly-persistent Linux backdoor and say antivirus engines do not flag the code as malicious.…
No formal attribution made but two separate probes hint at the same suspect Thousands of Asus routers are currently ensnared by a new botnet that is trying to disable Trend Micro security features before exploiting vulnerabilities for backdoor access.…
CEO: Neural net tech 'flattens our hiring curve, helps us innovate' CrowdStrike – the Texas antivirus slinger famous for crashing millions of Windows machines last year – plans to cut five percent of its staff, or about 500 workers, in pursuit of "greater efficiencies," according to CEO and co-founder George Kurtz.…
Google dumped io_uring after $1M in bug bounties A proof-of-concept program has been released to demonstrate a so-called monitoring "blind spot" in how some Linux antivirus and other endpoint protection tools use the kernel's io_uring interface.…
In effect: 'Ha ha – the government is borked and so are you' Ransomware scumbags - potentially those behind the Fog gang - are channeling their inner Elon Musk with their latest ransom note, spotted by researchers at Trend Micro.…
Crew also cooked up two fresh SparrowDoor backdoor variants, says ESET The China-aligned FamousSparrow crew has resurfaced after a long period of presumed inactivity, compromising a US financial-sector trade group and a Mexican research institute. The gang also likely targeted a governmental institution in Honduras, along with other yet-to-be-identified victims.…
'Only' a local access bug but important part of N Korea, Russia, and China attack picture An exploitation avenue found by Trend Micro has been used in an eight-year-long spying campaign, but there's no sign of a fix from Microsoft, which apparently considers this a low priority.…
Plus: DOGE staff quit; LastPass PC, Mac gasp; and CISA warns Oracle and Adobe flaws under attack Infosec bytes Kaspersky says it has found more than 200 GitHub repos hosting fairly convincing-looking fake projects laced with malicious software.…
OCR plugin great for extracting crypto-wallet secrets from galleries Kaspersky eggheads say they’ve spotted the first app containing hidden optical character recognition spyware in Apple’s App Store. Cunningly, the software nasty is designed to steal cryptocurrency.…