By Domesticus in Malware

Expiro is a family of viruses that affect both 32-bit and 64-bit versions of the Windows operating system. Like many viruses, Expiro appends its unreliable code to executable files, ensuring that copies of Expiro are executed repeatedly on the affected computer whenever the infected executable files run. Viruses receive their name because they carry attacks very similar to biological viruses, which take over a cell's DNA to force it to replicate versions of the invader. Similarly, Expiro hijacks executable files to force them to run and replicate copies of Expiro. Expiro may steal information on the affected computer and may set up other threats on the affected computer. Expiro has several aliases, including Xpiro and various variants designed to carry specific versions of the Expiro attack.

A General Evaluation of Expiro

Security researchers have studied Expiro carefully due to the fact that Expiro variants present a significant threat to computers today. Expiro variants are usually distributed using social engineering methods or from files hosted on infected removable drives. Infected executable files that are distributed using removable drives may spread from one machine to another. You may prevent Expiro from being distributed using removable drives. You can disable Windows' AutoRun, preventing it from running AutoRun files on removable drives automatically. You can also prevent computer users from using USB drives on servers or computers containing critical information. It is also important to use a strong, reliable security program to protect your computer from Expiro and similar threats in real time.

The Expiro’s Payload

Although the main danger associated with Expiro is the way Expiro spreads within a computer and from one infected computer to another, Expiro has been linked to several damaging payloads. Using Expiro, criminals may steal information or carry out a variety of harmful strategies. Security researchers have recently observed various attacks associated with Expiro designed to steal online banking information.

File System Details

PE_EXPIRO may create the following file(s):
# File Name Detections
1. {ec9032c7-c20a-464f-7b0e-13a3a9e97385}\components\red.js
2. dlddmedljhmbgdhapibnagaanenmajcm\1.0_0\content.js
3. {ec9032c7-c20a-464f-7b0e-13a3a9e97385}\chrome.manifest
4. dlddmedljhmbgdhapibnagaanenmajcm\1.0_0\manifest.json
5. {ec9032c7-c20a-464f-7b0e-13a3a9e97385}\install.rdf
6. {ec9032c7-c20a-464f-7b0e-13a3a9e97385}\chrome\content.jar
7. dlddmedljhmbgdhapibnagaanenmajcm\1.0_0\background.js

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