Malware analysis basics in Cybersecurity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to identify the type of malware based on its behavior.

Cybersecurity

if malware_behavior == [1]:
    print("This is a ransomware.")

Drag options to blanks, or click blank then click option'

Asends_spam

Bencrypts_files

Csteals_passwords

Dmines_cryptocurrency

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing ransomware with spyware or adware.

Ransomware encrypts files to demand payment for decryption.

2fill in blank

medium

Complete the code to check if a file is suspicious based on its extension.

Cybersecurity

if file_extension == [1]:
    print("This file might be malicious.")

Drag options to blanks, or click blank then click option'

A".jpg"

B".pdf"

C".exe"

D".txt"

Attempts:

3 left

💡 Hint

Common Mistakes

Thinking image or document files are usually malicious.

Executable files (.exe) can run code and are often used by malware.

3fill in blank

hard

Fix the error in the code that detects if a process is running suspiciously.

Cybersecurity

if process_name == [1]:
    alert('Suspicious process detected!')

Drag options to blanks, or click blank then click option'

A"svchost.exe"

Bsvchost.exe

C'svchost.exe'

Dsvchost

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes causes syntax errors.

String values must be enclosed in quotes to be valid in code.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps file names to their sizes only if size is greater than 1000.

Cybersecurity

file_sizes = {filename: [1] for filename, size in files.items() if size [2] 1000}

Drag options to blanks, or click blank then click option'

Asize

B<

C>

Dfilename

Attempts:

3 left

💡 Hint

Common Mistakes

Using filename as value or wrong comparison operator.

The comprehension keeps files with size greater than 1000 and maps filename to size.

5fill in blank

hard

Fill both blanks to filter a dictionary of malware samples where the name is uppercase, the type is 'trojan', and the risk score is above 7.

Cybersecurity

filtered = {sample[1]: info for sample, info in samples.items() if info['type'] == [2] and info['risk'] > 7}

Drag options to blanks, or click blank then click option'

A.upper()

C"trojan"

D.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using .lower() instead of .upper(), or wrong type string.

The sample name is converted to uppercase, info is unchanged, and type is checked as 'trojan'.