Posts Tagged: аудио скиммер

Oct 11

ATM Skimmer Powered by MP3 Player

Almost a year ago, I wrote about ATM skimmers made of parts from old MP3 players. Since then, I’ve noticed quite a few more ads for these MP3-powered skimmers in the criminal underground, perhaps because audio skimmers allow fraudsters to sell lucrative service contracts along with their theft devices.

Using audio to capture credit and debit card data is not a new technique, but it is becoming vogue: Square, an increasingly popular credit card reader built for the iPhone, works by plugging into the headphone jack on the iPhone and converting credit card data stored on the card into audio files.

An audio skimmer for a Diebold ATM.

The device pictured here is a card skimmer designed to fit over the card acceptance slot on a Diebold Opteva 760, one of the most common ATMs around. The green circuit board on the left was taken from an MP3 player (no idea which make or model). When a card is slid past the magnetic reader (the small black rectangle at the end of the black and red wires near the center of the picture), the MP3 player “hears” the data stored on the card’s magnetic stripe, and records it as an audio file to a tiny embedded flash memory device.

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Nov 10

Crooks Rock Audio-based ATM Skimmers

Criminals increasingly are cannibalizing parts from handheld audio players and cheap spy cams to make extremely stealthy and effective ATM skimmers, devices designed to be attached to cash machines and siphon card + PIN data, a new report warns.

The European ATM Security Team (EAST) found that 11 of the 16 European nations covered in the report experienced increases in skimming attacks last year. EAST noted that in at least one country, anti-skimming devices have been stolen and converted into skimmers, complete with micro cameras used to steal PINs.

EAST said it also discovered that  a new type of analog skimming device — using audio technology — has been reported by five countries, two of them “major ATM deployers” (defined as having more than 40,000 ATMs).

In the somewhat low-res pictures supplied by EAST here, the audio skimming device is mounted on a piece of plastic that fits over the ATM’s card reader throat. A separate micro camera embedded in the plastic steals the victim’s PIN.

The use of audio technology to record data stored on the magnetic stripe on the backs of all credit and debit cards has been well understood for many years. The basic method for conducting these attacks was mentioned in a 1992 edition of the hacker e-zine Phrack (the edition that explains audio-based skimmers is Phrack 37). Since then, other electronics enthusiasts have blogged about their experiments with sound skimmers; for example, this guy discusses how he made a card reader device out of an old cassette recorder.

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