A new malware has been spotted peaking at PokerStars and Full Tilt players’ cards to skew any chances of a win.

San Diego-based IT security company ESET has found a malware known as Win32/Spy.Odlanor in circulation since at least March 2015 and being used to cheat in online poker.

Odlanor can be unwittingly installed on a computer if the user downloads infected apps or software online. In other cases, the security researchers found the spyware was loaded onto the victim’s system through poker-related programs such as Tournament Shark, Poker Calculator Pro, Smart Buddy, Poker Office, and others.

“We have seen this trojan masquerading as a number of benign installers for various general purpose programs, such as Daemon Tools or uTorrent. In other cases, the spyware is installed through various poker-related programs,” said Robert Lipovsky, senior malware researcher at ESET.