Author Topic: virus in micrcontroller? (Read 5636 times)

servomechaniX · « **Reply #40 on:** April 16, 2008, 10:31:07 AM »

THANKS PO S MGA INFO NYU PO........

......

Philippine Electronics Forum · « **Reply #40 on:** April 16, 2008, 10:31:07 AM »

Mentor Lee · « **Reply #41 on:** April 17, 2008, 01:25:53 AM »

Quote from: techno08 on February 27, 2008, 11:22:59 AM

nakagawa ka na pala ng virus sa bootsector ,
btw hanga rin ako sa gumagawa ng virus.

Hmmm.. reminds me of my DOS days wayback .xx years ago when I was still using C/Pascal & Asm

BTW, the microcontroller per se cannot be infiltrated by virus. It is the software that is getting infiltrated. The vulnerability depends on how the software is set up. If its is in a flash - yes there is a possibility ( as in the mobilephones & PDAs). If its in a ROM - its impossible unless the virus is built in the software itself ( backdoor routines). MCU is nothing but hardware. Yung virus s cellphone is not on the MCU itself but on the software ( ie Java VM, symbian OS)

Philippine Electronics Forum · « **Reply #41 on:** April 17, 2008, 01:25:53 AM »

layad · « **Reply #42 on:** April 22, 2008, 10:12:52 AM »

I believe the original author was refering to data corruption in the MCU which in real life occur.

Philippine Electronics Forum · « **Reply #42 on:** April 22, 2008, 10:12:52 AM »

rdpzycho · « **Reply #43 on:** April 30, 2008, 09:24:33 PM »

EMI ang worst killer ng mga MCU, compared sa virus

. may ginawa akong self-oscillating relay that shorts a huge capacitor, based from our EMC consultant's suggestion before (pero ang suggestion niya, transient lang, hindi na nag-oscillate ng matagal) (hindi ko na rin maalala ang schematic basta 2 high current relay, 1 470uF na capacitor at 3 2200uF capacitor na naka-parallel, at some instances nag-act as boost yung coil ng inductors at nakuryente ako, sunog ang balat

, sounds like a buzzing bee kapag naka-sindi). pag tinapat sa MCU, magtri-trigger ng magtri-trigger ang Watchdog. kung hindi maganda ang Brown Out Detection, corrupted ang data sa Flash.

Philippine Electronics Forum · « **Reply #43 on:** April 30, 2008, 09:24:33 PM »

glutnix_neo · « **Reply #44 on:** May 05, 2008, 04:05:10 PM »

electrostatic matindi din

Philippine Electronics Forum · « **Reply #44 on:** May 05, 2008, 04:05:10 PM »

rdpzycho · « **Reply #45 on:** May 05, 2008, 08:23:42 PM »

naalala ko yung mga pictures ng TI about electrostatic damage. biyak talaga yung mga die.

mArKhAo · « **Reply #46 on:** June 18, 2008, 11:44:35 PM »

pwd pla dn mavirus? hehe

Quote from: glutnix_neo on May 05, 2008, 04:05:10 PM

electrostatic matindi din

hehe, kya pla balot na balot sila...

e, bkt yung iba, moisture sensitive parts?

hehehe

rdpzycho · « **Reply #47 on:** June 18, 2008, 11:49:51 PM »

nung binabasa ko yung ARM v7 architecture, may protection pala sa memory. meaning may threats din from viruses sa microcontrollers talaga at proactive ang approach nung mga designers.

mArKhAo · « **Reply #48 on:** June 18, 2008, 11:54:26 PM »

ganun? kyang biakin ang die? e, ang liit liit lng nun ah

Embedded · « **Reply #49 on:** March 16, 2009, 02:44:27 PM »

Quote from: rdpzycho on June 18, 2008, 11:49:51 PM

nung binabasa ko yung ARM v7 architecture, may protection pala sa memory. meaning may threats din from viruses sa microcontrollers talaga at proactive ang approach nung mga designers.

yung mga ibang chip na ARM base intended for secure transaction is may security mismo yung chip, tamper proof technology. so once na may madetect na short or higer voltage level sa mga pins na not intended to, then masusunog mismo yung chip.

regarding virus, i think it will be more specific kung yung microay may running na RTOS. if software virus ang pinag uusapan.

ef - el - ay - pee · « **Reply #50 on:** March 16, 2009, 03:10:33 PM »

hmmmm, gumagana yung zilog flash loading code via SMS ko....since flash ang ginagalaw nun, pwede ko xang utusan na mag flash load din ng code ng ibang mcu na nakakabit sa kanya via SPI/I2C or UART...

Embedded · « **Reply #51 on:** March 16, 2009, 04:02:21 PM »

ayos, ok yan sir.

Philippine Electronics Forum · « **Reply #51 on:** March 16, 2009, 04:02:21 PM »

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