Ransomwares frightening you! Then, how to get rid of it.
TerseInfo: Ransomeware, I think most people who are not aware of it also agitated about it.Which recently hit 74 countries destroying various files by injecting Wannacry 2.0 Ransomware.Is Ransomwares really dangerous?Lets look at What is Ransomware and how to get rid of it?
What are Ransomwares?
In this epoch of technology with the interconnected global arena, businesses are highly reliable on workstations, servers, networks and so on. The complexity of managing a business became simple with the digital files which store on palm-sized disk drives. From high-profiled to various sensitive business-related data is completely computerized. Which provides flexibility in business transactions and deals. Heretofore, the story is good but this provides various opportunities for the extortionists.
In the process, Ransomware come into the hands of extortionists which is defined as
“A malware which unknowingly installs onto the victim’s device and force the victim to pay the ransom within the time to avoid the threat”
Heading to the glimpse history of Ransomware.In 1989, Joseph Popp has written “AIDS Trojan” malware for the extort attack which doesn’t provide the results. But this later became Ransomware-the popular extortist attack up to 1996 and then slowed down. Again from 2005 the popularity of Ransomware grown rapidly due to the evolution of the internet.
The anatomy of ransomware is simple to understand also that made this threat popular among the extortionists. Most of the hacker groups reliable on this threat to make easy dollars. In simple terms, ransomware attack is installing malware on target victim and putting his files in danger to get ransom paid.So, the anatomy explains in five steps.
Deployment phase mainly focuses on the surreptitious installation of malware to infect, encrypt, or lock the system. Methods involved in the deployment of malware are Drive-by download, Strategic web compromise, Phishing emails, and lastly Exploiting vulnerabilities in internet-accessible systems.
Installation phase which targets the device to install the malware.Importantly, in the past extortionists focussed on workstations and shared computer environments. But today handheld devices becoming the target due to its vital usability.
Command-and-Control is to build the communication between the crook and victim (or) end-user. For this various protocols are paramount. And this is vital in identifying the files to target on the victim’s system.
Destruction process will encrypt the targeted files on the malware installed system. The files are infected, encrypted and locked with the malcode at this phase.
In the phase of extortion, the attacker involves negotiating the ransom.Mainly, the ransom would be $200-$300. Sometimes depending on the victims, ransom would be increased.
Types of Ransomware
With the increasing extent of ransomware attacks, the types of ransomware also growing newer and larger. Every week different types of stories building around the ransomware. As technology is upgrading, in the same way, the properties and attacks of ransomware also remoulding. We dig deep into some of the latest and prior types of ransomware.
Mostly ransomware types referred to as ransomware family.
Cerber: The attack is on the cloud-based office 365 users. Campaigning done through the phishing emails.
Crysis: It uses strong encryption algorithms to encrypt the files on fixed, removable and network disks.I n the reasonable time it is difficult to crack.
Cryptolocker: This type of ransomware is there from a long time. It locks the files on victims machines which is unbreakable without the key.
Cryptowall: This came into existence after the downfall of cryptolocker.It consists of variants like cryptobit, cryptodefence and so on.
Jigsaw: It is widely used ransomware in the hacker communities. This deletes the files of the victim if he doesn’t pay the ransom within the given time.
Locky: This is also similar to different ransomware which is installed as a spam. Mainly it is sent to victim system through emails.
Zcryptor: The behavior of Zcryptor like a worm and which is self-executed. This malware encrypts the files as well as infect the files.
If ransomware hits the desktop, even if it is stopped there, it already means that several security systems have failed. That failure could have happened at the mail server for not screening mail properly, or it could mean the web proxy or the intrusion detection system (IDS) did not know about a bad domain or a pattern of malicious traffic.
There are various safeguarding methods to defend the threats like Ransomware and protect the businesses. If we do so millions of dollars will be in safe hands.
Firstly, if we look at the modern cryptoransomware the attackers are targeting through the network access. Due to every transaction in the business is involved via a network. This became an opportunity to extortist to infect the file or sent a spam mail. Defending such ransomware require network related techniques.
Hardening the System and Restricting Access
This is the first step to protecting workstations and servers from the threats. Hardening the workstations and servers will avoid the flaw in the systems. And ransomware cannot get access to enter into the systems. You can also install few of the software that tracks the ransomware but not fully. Kaspersky lab, also ProofPoint are few of the resources to track the malware.
Time to Ditch Flash
Yes, Adobe flash will become the main reason for allowing ransomware.So, you need to remove the flash across the network. This can keep you safe from ransomware.
You have to be prepared before the attack occur. Backup the important data, working in the virtual environment rather than physical, storing data on the clouds etc., can keep you safe from the ransomware.
Final words, rather than shacky about Ransomware be prepared before it takes the handle of your equipments.If any queries, Let us have a discussion in comments below