Phishing Campaign Use CSV Text Files To Install Malware

Share post:

A malicious comma-separated values (CSV) file is now used to infect devices with the malware BazarBackdoor.

The malware BazarBackdoor was developed by the TrickBot group and gives attackers remote access to an internal file that can be used to spread laterally within a network.

A CSV is considered harmless because it is a simple text with no executable code. However, a Dynamic Data Exchange (DDE) feature in Microsoft Excel can be used to execute commands whose output is inputted into the open table, including CSV files.

The phishing campaign disguised as the Payment Remittance Advice provides links to remote websites that download a CSV file with names similar to ‘document-21966.csv.’

This text file contains a strange WMIC call in one of the columns of data called a DDE function. The DDE uses WMIC to create a new PowerShell process, which opens a remote URL, which contains another PowerShell command, which is then executed.

However, the process of installing the malware is not complete without users confirming the execution of the DDE function.

For more information read the original story in BleepingComputer.


Related articles

Cyber Security Today, Week in Review for week ending Friday, June 21, 2024

Welcome to Cyber Security Today. This is the Week in Review edition for the week ending Friday June...

Cyber Security Today, June 21, 2024 – US to ban Kaspersky for businesses, consumers

U.S. to ban the sale of Kaspersky products to consumers and businesses. Welcome to Cyber Security Today. It's Friday...

Biden administration to ban US sales of Kaspersky software over ties to Russia

The Biden administration is set to announce a ban on the sale of Kaspersky Lab's antivirus software in...

Security bug may allow anyone to spoof Microsoft employee emails

A security researcher claims to have discovered a bug that enables anyone to impersonate Microsoft corporate email accounts,...

Become a member

New, Relevant Tech Stories. Our article selection is done by industry professionals. Our writers summarize them to give you the key takeaways