Detailed analysis of a targeted campaign that tries to steal sensitive information from different organizations throughout the world, but particularly in Pakistan.
Some 400 web servers found infected with Linux/Cdorked.A. including 50 in Alexa’s top 100,000 websites. And this backdoor has been applied to Lighttpd and nginx binaries in addition to Apache.
We clarify that the Linux/Cdorked backdoor malware leaves no traces on the hard drive “other than its modified httpd binary” which can be scanned for detection in several ways.
The mysterious Avatar rootkit, detected by ESET as Win32/Rootkit.Avatar, appears to reflect a heavy investment in code development, with an API and a SDK available, plus an interesting abuse of Yahoo Groups for C&C communications.
Analysis of a malicious backdoor serving Blackhole exploit pack found on Linux Apache webserver compromised by malware dubbed Linux/Cdorked.A, together with remediation tool and techniques.
The new ESET blog format must be striking a real chord with people. At any rate, job offers are just pouring in. Except that they don’t seem to be jobs for security bloggers, or for web developers like the team that maintains this site.
Technical analysis of Power Loader, a special bot builder for making downloaders for other malware families and yet another example of specialization and modularity in malware production.
Adobe and Microsoft have both released patches this week to address vulnerabilities in respective software applications and advise all users to apply the patches as soon as possible, if applicable to them.
Below, you can see the textual part of a bank phishing email I received today (it also contained a Smile logo, which was the only graphical content). Here’s the message text from the phishing email: Dear Account Holder, Do you know that with Smile Internet banking, you can eliminate the cost of receiving and transferring
A deep dive into Win32/Theola, one of the most malicious components of the notorious bootkit family, Win32/Mebroot.FX. Theola uses malicious Chrome browser plugins to steal money.
Malware infecting 25,000 computers, mostly in the United States, pumping out 80 million spam messages per hour? ESET researchers sinkhole to investigate Win32/TrojanDownloader.Zortob.B
Issues with malware are always with us. There may or may not be a current media storm, or companies hoping for a slice of the anti-malware pie by proclaiming the death of antivirus in a press release, but AV labs continue to slog their way every day through tens of thousands of potentially malicious samples.
Analysis of malicious code dubbed Win32/Caphaw (a.k.a. Shylock) attacking major European banks, with ability to automatically steal money when the user is actively accessing his banking account.
Technical analysis of malware that abuses code signing certificates normally used to positively identify a software publisher and to guarantee code is unchanged.
ESET’s threat researchers received a surprise earlier this week when they began receiving reports from ESET LiveGrid that downloads of ComboFix, a tool popular with advanced users for removing malware, were detected as being infected by a variant of the Sality virus, Win32/Sality.NBA.