Sites like Shodan. They will have secured access to domain admin accounts as well as other user accounts. Attackers typically compromise multiple accounts during an attack. Their main goal is to get access to domain admin accounts that can be used to launch the ransomware. However, they also target specific admin accounts that have access to sensitive data, backup systems, and security management consoles. They will have scanned your network. They know how many servers and endpoints you have and where you keep your backups, business-critical data and applications.
One of the first things attackers will do when they get onto a network is identify what access they have on the local machine. The next step is to find out what remote machines exist and if they can access them. These scanners will generate a list of IPs and machine names.
The attackers are likely to have downloaded and installed backdoors that allow them to come and go on your network and install additional tools. The backdoors come in a variety of forms. Many backdoors are classified as legitimate applications. Even if RDP is disabled by default, it is very easy for an attacker with admin access to the machine to re-enable it.
Another common legitimate tool used is AnyDesk. Or they could use more advanced tools such as Cobalt Strike, a legitimate post-exploitation pen-testing tool. It can also be used to easily deploy further beacons on other machines inside the network. Some attackers, including Conti, also set up Tor proxies so they can send command-and-control traffic over the Tor network. Such activity is often very hard to spot. In addition to the encryption of data and disruption to software and operations, Conti operators will try to exfiltrate hundreds of gigabytes of corporate data prior to the main ransomware event.
Some of the more valuable data is often sold to other attackers to use in further attacks. For example, they could simply login to an online email service and email it somewhere or use a cloud storage provider like DropBox.
Some of the largest exfiltrations are done in a more automated way. For example, they might use a tool like RClone. Why the difference? From a geological perspective, Europe and Asia are one large landmass. Dividing them into two separate continents is more of a geopolitical consideration because Russia occupies so much of the Asian continent and historically has been politically isolated from the powers of Western Europe, such as Great Britain, Germany, and France.
Recently, some geologists have begun arguing that room should be made for a "new" continent called Zealandia. This landmass lies off the eastern coast of Australia. New Zealand and a few minor islands are the only peaks above water; the remaining 94 percent is submerged beneath the Pacific Ocean.
Geographers divide the planet into regions for ease of study. You can also divide the Earth's major landmasses into tectonic plates, which are large slabs of solid rock. These slabs consist of both continental and oceanic crusts and are separated by fault lines. There are 15 tectonic plates in total, seven of which are roughly ten million square miles or more in size. Not surprisingly, these roughly correspond to the shapes of the continents that lie atop them.
Actively scan device characteristics for identification. Windows Command Shell [ T Courses of Action for Conti ransomware. Please enter your email address! Please mark, I'm not a robot! By submitting this form, you agree to our Terms of Use and acknowledge our Privacy Statement. Palo Alto Networks detects and prevents Conti ransomware in the following ways: WildFire : All known samples are identified as malware. Anti-Ransomware Module to detect Conti ransomware encryption behaviors.
Local Analysis detection for Conti binaries. AutoFocus : Tracking related activity using the Conti tag. Unit 42 Security Consulting: The Ransomware Readiness Assessment detects any hidden threats, tests for preparedness and provides remediation recommendations. One of the first things attackers will do when they get onto a network is identify what access they have on the local machine. The next step is to find out what remote machines exist and if they can access them. These scanners will generate a list of IPs and machine names.
The attackers are likely to have downloaded and installed backdoors that allow them to come and go on your network and install additional tools. They will have set up folders and directories to collect and store stolen information and channels for communicating with the attackers and for moving information out of your network. The backdoors come in a variety of forms.
Many backdoors are classified as legitimate applications. Even if RDP is disabled by default, it is very easy for an attacker with admin access to the machine to re-enable it. Some attackers, including Conti, also set up Tor proxies so they can send command-and-control traffic over the Tor network. Such activity is often very hard to spot. In addition to the encryption of data and disruption to software and operations, Conti operators will try to exfiltrate hundreds of gigabytes of corporate data prior to the main ransomware event.
Some of the more valuable data is often sold to other attackers to use in further attacks. They will have tried to encrypt, delete, reset, or uninstall your backups.
Unless your backups are stored offline, they are within reach of the attackers. The attackers will have tried to identify what security solution is used on the network and whether they can disable it. It does not matter how good your protection is if the attacker can turn it off. Attackers also try to find and gain access to the management consoles of more advanced security solutions to disable all protection just before they launch the ransomware.
Security management consoles hosted locally are especially at risk as attackers could access them with the accounts they have already compromised. The most visible part of the attack — the release of ransomware — probably took place when no IT admins or security professionals were online to notice and prevent the lengthy process of file encryption, possibly during the middle of the night or during the weekend.
Note: The encryption process takes hours. An encrypted Windows endpoint will have tens or hundreds of thousands of encrypted files by the time the ransomware is done. For large fileservers this could run into the millions. Therefore most targeted ransomware attacks are launched in the middle of the night, over a weekend or on a holiday, when fewer people are watching. Up to this point, the attackers have been trying to stay hidden, but here their tactics change.
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