Ransomware is a type of malicious software that demands a ransom (ransom) by encrypting your files or preventing you from accessing your device. It is the most profitable cyber crime model of the digital age.
🔴 Ransomware Statistics
every in 11 seconds An organization is attacked by ransomware (SonicWall 2024). Total ransom demands in 2023 $1 billionexceeded . Average ransom amount $1.5 million. Your attacks 72% He uses double blackmail.
How Does Ransomware Work?
1
Infection
Malware enters the device via phishing, RDP brute force or exploit kit.
2
reconnaissance
The attacker moves through the network, detecting critical systems and backups.
3
Encryption
Files are encrypted with AES-256 or RSA. The original files are deleted.
4
Ransom Demand (Ransom Note)
A ransom note appears on the screen. Payment with cryptocurrency is requested.
5
Double Extortion
If payment is not made, the stolen data is published on the dark web.
A Brief History of Ransomware
1989
First Ransomware: AIDS Trojan
The first ransomware created by Joseph Popp. It was distributed via floppy disk.
2013
CryptoLocker
The beginning of the modern ransomware era. It used RSA encryption.
2017
WannaCry & NotPetya
Global epidemic. 150+ countries affected. Billions of dollars in damage.
2020
RaaS Era
The Ransomware-as-a-Service model has become widespread. DarkSide, REvil has risen.
2023-24
LockBit&Play
The most active groups. It targets health, education and government institutions.
💡 Critical Information
Ransomware no longer just encrypts files. Double blackmail It steals your data with (double extortion), triple blackmail It also threatens your customers and business partners with triple extortion.
EPISODE 02
Ransomware Types
Ransomware attacks in different ways. Each species has its own unique behavior and defense needs.
Main Ransomware Categories
MOST COMMON
Crypto Ransomware
It encrypts your files. It demands ransom for the decryption key. The most common type.
%70All your attacks
Examples: LockBit, Conti, Ryuk
DEVICE LOCKER
Locker Ransomware
It completely blocks your access to your device. It does not encrypt files but makes the system unusable.
%15Common on mobile devices
Examples: Petya, Satana
SCARY
scareware
Shows fake antivirus alerts. "Your device is infected, pay" messages.
%8All your attacks
Examples: FakeAV, SystemCare
BLACKMAIL
Doxware (Leakware)
They steal your sensitive data and claim that they will publish it unless payment is made.
%72Couple uses blackmail
Examples: Maze, Egregor
AS A SERVICE
RaaS (Ransomware-as-a-Service)
Ransomware kits available for rent. It does not require technical knowledge. Profit sharing is done.
%80modern attacks
Examples: LockBit 3.0, BlackCat, Hive
MOBILE
Mobile Ransomware
It targets Android devices. Locks the screen or encrypts files.
%25Android malware
Examples: Android/Filecoder, Koler
Comparison of Ransomware Types
Genre
target
Method
Damage Level
Detection Difficulty
Crypto
files
Encryption
critical
medium
Locker
Device access
locking
high
easy
scareware
User
scare
low
easy
doxware
Data + Reputation
blackmail
critical
hard
RaaS
everything
rental
critical
Very Difficult
mobile
mobile device
locking
medium
medium
Mini Quiz: Types of Ransomware
Question 1/3
Which type of ransomware does not encrypt files but completely blocks your access to your device?
EPISODE 03
How is Ransomware Transmitted?
There are many ways for ransomware to infect a device. Knowing the most common vectors strengthens your defenses.
Most Common Ways of Transmission
1
Phishing Emails
Harmful attachments or links in fraudulent emails. The most common route of transmission.
%41All your attacks
2
RDP Attacks
Weakly encrypted Remote Desktop Protocol access. It is broken by brute force.
%25Corporate attacks
3
Software Vulnerabilities
Zero-day or known vulnerabilities in unupdated software.
%18Exploit kit usage
4
Malicious Websites
Drive-by download: Even visiting the site is enough.
%8web based
5
Removable Media
Infected USB sticks. It is transmitted automatically with the Autorun feature.
%5physical contamination
6
supply chain
Infection via reliable software updates. SolarWinds example.
%3supply chain
Attack Chain (Kill Chain)
1
reconnaissance
Gathering information about the target. Open ports and vulnerabilities are scanned.
2
Initial Access
Accessing the system via phishing, RDP brute force or exploit.
3
Privilege Escalation
Obtaining admin/root rights. Local exploits.
4
Lateral Movement
Propagation to other systems in the network. Domain controller is targeted.
5
Data Stealing (Exfiltration)
Sensitive data is stolen. Used for double blackmail.
6
Encryption
Files are encrypted. Backups are deleted or encrypted.
7
Ransom Demand (Ransom)
A ransom note is left. Payment with cryptocurrency is requested.
⚠️ Critical Alert
Modern ransomware attacks average 10 days It remains on the network and performs encryption. During this time, it silently explores, finds and deletes backups. Early detection is vital.
EPISODE 04
Which Sectors Does Ransomware Target?
Ransomware attackers prefer profitable targets. Some sectors are more attacked.
Most Targeted Sectors
1
health
Hospitals, clinics. There is a high probability of paying ransom due to vital systems.
Ransomware detection with behavioral analysis. Automatic response.
Incident Response Plan
Prepare ransomware procedure. Do a drill once a year.
💡 Golden Rule
Backup + MFA + Training trio of ransomware attacks 90% prevents or reduces its effect.
EPISODE 08
What to Do If You're Attacked? (Emergency)
The moment you realize you are infected with ransomware, do not panic. You can minimize the damage by calmly following the emergency procedure below.
🚨 THE FIRST 1 HOUR IS VERY CRITICAL!
The first hours you detect the attack are vital to the recoverability of your data and the protection of the rest of the network. Don't waste time.
Step by Step Emergency Response Plan
1
Isolate from the Network (Disconnect)
Unplug the affected device's ethernet cable and turn off its Wi-Fi. Prevent ransomware from spreading to other devices and backup servers on the network.
DO IT NOW!
2
Do not turn off the device (do not cut off the power)
Do not unplug or turn off the computer. Data in RAM can be critical for computer forensics and finding decryption keys.
JUST DISCONTINUE FROM THE NETWORK
3
Maintain Backups
If your backup system is connected to the network, disconnect it immediately. Check if your offline or immutable backups are safe.
STEP 3
4
Take a Screenshot
Photograph or take a screenshot of the ransom note, encrypted file extensions, and attacker contact information.
STEP 4
5
Notify Authorities and Experts
If it is corporate, inform the CISO/IT team, if it is individual, inform the cyber security experts and the Police Cyber Crimes unit.
STEP 5
6
Reset Passwords
Change the passwords of all your critical accounts (email, bank, admin) and log out from a different, clean device.
STEP 6
Things You Should Never Do
Do Not Pay Ransom: Paying won't save your files, it will just fund the criminals and make you a target again.
Do Not Contact the Attacker: Do not send money to the crypto wallet address or try to "negotiate" it.
Don't Trust Third Party "Decryption" Tools: Random decryption tools on the internet are often fake or infect additional malware.
EPISODE 09
Should Ransom Be Paid?
The most frequently asked question: "Will I get my files back if I pay the ransom?" The common answer from cybersecurity experts, law enforcement and government agencies is clear.
ABSOLUTELY NO
Why Shouldn't You Pay?
No Warranty: 42% of attackers do not return files after receiving a ransom (Sophos).
You Become a Target Again: Those who pay are marked as "paying" and attacked again.
You Finance Crime: Your payment is used to develop further ransomware.
Legal Issues: In some cases (payment to OFAC-listed groups) may constitute a legal offence.
THE RIGHT APPROACH
What Should You Do?
Restore from Backup: Set up a clean environment and restore data from the latest secure backup.
Check Free Solvers: Check for a decryptor from the NoMoreRansom.org project.
Get Professional Support: Get computer forensics and recovery support from cyber security companies.
Contact Law Enforcement: Report the situation to the Police Cyber Crimes or relevant national cyber security center.
⚠️ Insurance Status
If you have cyber insurance, before you pay Be sure to inform your insurance company and law enforcement. Making unauthorized payments may void insurance coverage.
CHAPTER 10
Ransomware Defense Checklist
Use this comprehensive checklist to evaluate your ransomware defenses.
Backup Strategy
Technical Measures
Human Factor
Final Quiz: Ransomware Defense
Question 3 of 3
Your company server has been encrypted and a ransom note appears on the screen. What should you do first?
🎉 Congratulations!
You have completed the ransomware guide! Now you know how ransomware works, how to prevent it, and what to do in case of attack. Increase digital resilience by sharing your information with your team and loved ones.
FREQUENTLY ASKED QUESTIONS
ransomware FAQ
Will I definitely get my files back if I pay the ransom?
No, there is no guarantee. According to data from cyber security companies, 40% of those who pay ransom cannot fully get their files back. Paying also makes you a target again in the future.
Is there a free way to recover my encrypted files?
Sometimes yes. NoMoreRansom.org project offers free decryptors for many older types of ransomware. However, with new and complex types (e.g. modern LockBit) there is often no solution, restoring from backup is the only way.
Will my antivirus software block ransomware?
Traditional antiviruses only capture known signatures. To stop modern ransomware EDR (Endpoint Detection and Response) or advanced security solutions that perform behavioral analysis are required.
Should I shut down the computer after being infected with ransomware?
No, do not turn off or restart the device. Data in RAM (encryption keys or forensic evidence) may be deleted. Just disconnect the network connection (cable/Wi-Fi).
What is an immutable backup and why is it important?
Immutable backup is a type of backup that cannot be deleted or modified in any way (even by ransomware) for a certain period of time. It is the most definitive solution against ransomware attacks.
What is Double Extortion?
It is a modern attack model in which attackers both encrypt your files and threaten to leak the stolen sensitive data to the internet if payment is not made.
Are home users also targets of ransomware?
Yes, definitely. Attackers are now using automated scanning tools. Home users can also demand ransom for personal photos, documents and crypto wallets.
Who organizes the ransomware attack?
Organized cybercriminal gangs usually originating from Eastern Europe, North Korea or Iran. However, thanks to the RaaS (Ransomware as a Service) model, any cybercriminal with technical knowledge can organize these attacks.
