HNHacker News
TopNewBestAskShowJobs

axsharma

262 karma · joined May 25, 2020

Security Researcher & Tech Reporter

@Ax_Sharma AxSharma.com

submissionscomments
axsharma··on NPM nukes Node.js malware opening Windows, Linux reverse shells
More NodeJS malware has been spotted by NPM that spawned reverse shells on Windows & Linux machines, exfiltrated environment data, and has scored over 1,000 downloads!
axsharma··on Microsoft fixes certificate spoofing vulnerability abusing CAT files
This one hasn't been talked about much publicly, but an advisory shared with Microsoft enterprise customers (and BleepingComputer) mentions use of .CAT files to spoof signatures on Windows.
axsharma··on Palo Alto Networks researcher discovers Linux privilege escalation vulnerability
Palo Alto Networks researcher Or Cohen discovered a Linux privilege escalation vulnerability that let standard Linux user to gain root permissions.
axsharma··on Office 365 phishing email asks for captchas to remain undetected
that's not only to make itself look more legit to humans, but to evade detection by security tools, web proxies, email gateways, etc. aka 'bots'. The irony of it.
axsharma··on Online avatar service Gravatar allows mass collection of user info
Great find!
axsharma··on Telegram app used by malware to infiltrate e-commerce sites
...built on PrestaShop, WooCommerce, and Magento.
axsharma··on [dead]
https://blog.sonatype.com/sonatype-spots-malicious-npm-packa...
axsharma··on Can a Windows wallpaper hijack your Microsoft account password?
Actually, it depends.
axsharma··on Google App Engine lets you create unlimited subdomains for phishing pages
and malware C&C server to make it hard for corporate security solutions to implement IOC/domain-based blocks.
axsharma··on A malware alert left hundreds of Bank of America customers panicking
Hundreds of Bank of America customers had trouble accessing their bank accounts yesterday due to Avast and AVG antivirus engines flagging the site as "malware."
axsharma··on CNN-News18 allegedly breached by hackers to refute PayTM attacks
These are the same hackers who had hacked Indian Prime Minister's Modi twitter account today.
axsharma··on Apple SSH privacy bug actively “exploited at large” still unpatched
A 2-year old #vulnerability still unpatched by #Apple has been used in SSH attacks for gaining full disk access on Macs.
axsharma··on FritzFrog malware attacks Linux servers over SSH to mine Monero
Fileless, serverless, versatile and advanced FritzFrog is a botnet AND a worm that masters self-replication, deployment, growth and mining crypto.

Over 500 servers in the US and Europe belonging to government, education, healthcare and finance sectors have been breached already.

Guardicore Labs has identified the strand and provided remediation guidance.

axsharma··on Why do planes use floppy disks in 2020 for critical updates?
DEF CON's revelation about BOEING-747 using floppies made headlines, but nobody explained WHY.

Why not USB devices, or CDs?

So I decided to do a detailed analysis on why do airplanes use floppy disks in 2020 for critical updates?

axsharma··on Hacker Noon leaks unfinished drafts to Google
Google search has been indexing Hacker Noon's unfinished drafts.
axsharma··on IoT Smart Lock Vulnerability Spotlights Bigger Issues
Got an IoT smart lock? Watch out for hackers unlocking it from anywhere!

A security vulnerability discovered and responsibly reported by Craig Young of Tripwire exposes flaws in U-Tec UltraLoq locks, among other devices.

axsharma··on Ask HN: What are doing this weekend?
Plan was to go to the beach but considering how British beaches are flooded during this hot weekend, gonna write more hacker stuff.
axsharma··on TeamViewer fixes 'iframe' bug that lets attackers access your PC
Using iframe and TeamViewer's custom URI scheme, attackers could initiate connection from your Windows PC to their SMB shares!
axsharma··on Hackers use homoglyph domains and favicons for card skimming
Hackers abuse lookalike domains and favicons for credit card theft using a variation of older Magecart technique. This time they throw in homograph domains.
axsharma··on United States of Porn: Gov sites abused to get SEO by porn sites
Abusing open redirects on many government sites including Weather.gov, spammers get easy organic SEO for porn sites.
axsharma··on Bypass Windows 10 UAC via Mock folders
An easier variation of an older technique using "mock folders" i.e. C:\Windows \System32 (notice the trailing space after Windows\) and DLL hijacking to bypass UAC and do other naughty things.
axsharma··on Domain hoarder loses $88,000 to a cruise company, and hoards their domain too
Affluent domain squatter "Domain King" apparently as $88k stuck with Crystal Cruises, so he hoards "CrystalCruisesSuck.com"
axsharma··on 20k GitHub projects use vulnerable Node.js `standard-version` library
Other similar vulnerabilities in popular components revealed too.
axsharma··on D-Link blunder: Firmware encryption key exposed in unencrypted image
D-Link encrypted firmware can be easily cracked by the leaking key
axsharma··on Windows 10 Store wsreset.exe tool lets attackers bypass antivirus
Previously abused for privilege escalation/UAC bypass. A use-case (deleting arbitrary files needing privileged access) was brought to light by a researcher. The behaviour can be used to disable antivirus products.
← PreviousPage 3 of 3