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CentOS 8 is already here with major updates. One of them being the replacement of well known
dnf package manager. All these updates make the upgrade from CentOS 7 to CentOS 8 difficult and it’s even not supported officially. So, in most cases people end up building new CentOS 8 servers and migrating the apps to new infrastructure, or try and upgrade it manually risking running an unsupported version of the OS. You can find more details on this forum thread.
Everybody is talking about the coronavirus pandemic, caused by Covid-19. Media is all about it, news published every minute, interviews with top scientists are being held, multiple websites create to track the spread and governments sending emails/SMS notifications to population about latest measures. It’s everywhere. Besides all these, multiple security companies confirmed a spike in online scams, phishing attacks and “coronavirus” malicious files. There was a 667% spike in phishing attacks since February, 2020, due to coronavirus fears. Everybody is in rush, people stockpiling and cybercriminals adapting their tools and exploiting unsuspicious users, connected to Internet more than ever.
Anyone heard about Forbix worm? Good. Lots of us know how difficult is to remove a worm from an infected system or network. Of course it depends on multiple factors, like: the way it spreads, persistence mechanisms, disguise techniques used once machine is infected, reinfection methods, etc. These days, when someone says “Windows worm” we usually expect a highly sophisticated piece of malware, exploiting a 0-day/1-day vulnerability and “preferably” this vulnerability being in a service listening on a specific port exposed to the whole world. May be this is the case of the worm like ransomware WannaCry, but definitely not applicable to Forbix malware.
This is the Part 2 of my Emotet analysis. It covers phase 3 of the attack, specifically the PE file which is being dropped by infected websites, used in Phishing/Spam campaigns. Emotet is an advanced modular Trojan, predominantly used as Malware Distribution Platform, main goal being systems infection with other types of malware.
This is Part 1 of Emotet malware analysis I’m planning to post. It covers phases 1 and 2 of the attack, specifically phishing and establishing persistence in the infected system. Emotet is spread via phishing emails containing malicious links or attachments, and targets everyone (individuals, companies and governments).
Remember Equifax hack and data of millions being stolen? Then you should also remember the Apache Struts 2 vulnerability, used during that attack. This sounds like an old news, but it seems to be exploited even to the day of this post. Someone is attacking web servers successfully and installs cryptominers, adding victims to a Monero pool.
Let’s solve some crackme challenges for Android. This post is going to be updated once new crackmes are out. All files have been tested both, in emulator and on physical device, so running them shouldn’t be a problem.