If unsigned or signed by an untrusted CA (e.g., “DigiCert Corp” with a 2024 date), treat as hostile. Legit exports: UF_OpenScanner , UF_CloseScanner , UF_StartScan , UF_StopScan .

If you’ve spent any time digging through the installation directories of legacy enterprise software—think document management systems, ERP clients, or older OCR packages—you’ve likely stumbled across a file named ufscanner.dll . It sits there, often ignored, next to a sea of other DLLs. But this particular file has a story.

Depending on who you ask, ufscanner.dll is either a forgotten workhorse of peripheral integration or a subtle indicator of system compromise. In this post, we’ll tear down the mystery: what it is, why it exists, and how to tell the legitimate version from a malicious impostor. The first question is always: what does “UF” stand for?

  1. Rooth

    I think that Burma may hold the distinction of “most massive overhaul in driving infrastructure” thanks, some surmise, to some astrologic advice (move to the right) given to the dictator in control in 1970. I’m sure it was not nearly as orderly as Sweden – there are still public buses imported from Japan that dump passengers out into the drive lanes.

  2. Mauricio

    Used Japanese cars built to drive on the Left side of the road, are shipped to Bolivia where they go through the steering-wheel switch to hide among the cars built for Right hand-side driving.
    http://www.la-razon.com/index.php?_url=/economia/DS-impidio-chutos-ingresen-Bolivia_0_1407459270.html
    These cars have the nickname “chutos” which means “cheap” or “of bad quality”. They’re popular mainly for their price point vs. a new car and are often used as Taxis. You may recognize a “chuto” next time you take a taxi in La Paz and sit next to the driver, where you may find a rare panel without a glove comparment… now THAT’S a chuto “chuto” ;-)

  3. Thomas Dierig

    Did the switch take place at 4:30 in the morning? Really? The picture from Kungsgatan lets me think that must have been in the afternoon.

  4. Likaccruiser

    Many of the assertions in this piece seem to likely to be from single sources and at best only part of the picture. Sweden’s car manufacturers made cars to be driven on the right, while the country drove on the left. Really? In the UK Volvos and Saabs – Swedish makes – have been very common for a very long time, well before 1967. Is it not possible that they were made both right and left hand drive? Like, well, just about every car model mass produced in Europe and Japan, ever. Sweden changed because of all the car accidents Swedish drivers had when driving overseas. Really? So there’s a terrible accident rate amongst Brits driving in Europe and amongst lorries driven by Europeans in the UK? Really? Have you ever driven a car on the “wrong” side of the road? (Actually gave you ever been outside of the USA might be a better question). It really ain’t that hard. Hmmm. Dubious and a bit weak.

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