Symantec has cautioned Android users about a malicious app that quietly generates advertising revenue for its creators behind your back.

Downloaded 45,000 times in the last six months alone, the software can hide itself on your handset to avoid detection. And even if you do manage to locate it on your smartphone and delete it, the nefarious app can reinstall itself without your permission. Worse yet, it seems to be spreading fast.

According to research by security firm Symantec, there was an average of 131 devices infected each and every day in the last month, with an average of 2,400 devices persistently infected throughout the month. The malware appears to mostly affect users in India, United States of America, and Russia.

Not only does the app silently use advertising to earn money from your handset but it can download other threats to your smartphone when it wants, too.