Looks like there was the old hidden window of okteta hex editor that I forgot to close, and for each rebuild of coreboot.rom okteta's core printed these spooky messages :P Sorry for the false alarm... (although its never wrong to be on high alert)
On Sat, Feb 10, 2018 at 10:52 PM, Mike Banon mikebdp2@gmail.com wrote:
While building a coreboot now I'm getting this "kasten.core" message (see below), it wasn't like that earlier! Tried to search through all the coreboot sources with ' find . -type f -print0 | xargs -0 grep "kasten" ' but no results! So thats not a new coreboot build script. It almost looks like instantly after I complete a coreboot build, something malicious modifies my coreboot.rom file. Haven't analyzed the .rom yet, I wanted to submit these findings as soon as possible. What do you think? Meanwhile I will take my system offline and remove a hard drive from it, so that someone couldn't remotely delete this backdoor before I find it
CBFS payload_config CBFS payload_revision CBFS coreboot.romkasten.core: "/home/mikeb/coreboot/build/coreboot.rom" CBFSPRINT coreboot.rom
Name Offset Type Size Comp cbfs master header 0x0 cbfs header 32 none fallback/romstage 0x80 stage 320396 none fallback/ramstage 0x4e480 stage 131631 none config 0x6e700 raw 84 none revision 0x6e7c0 raw 575 none cmos_layout.bin 0x6ea40 cmos_layout 1164 none fallback/postcar 0x6ef40 stage 13268 none fallback/dsdt.aml 0x72380 raw 9016 none fallback/payload 0x74700 payload 67370 none payload_config 0x84e80 raw 1611 none payload_revision 0x85540 raw 239 none (empty) 0x85680 null 3581720 none s3nv 0x3efdc0 raw 32768 none (empty) 0x3f7e00 null 31704 none bootblock 0x3ffa00 bootblock 928 none
Built lenovo/g505s (LENOVO G505S) mikeb@testing:~/coreboot$ kasten.core: "/home/mikeb/coreboot/build/coreboot.rom"
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Mike Banon