underisk [none/use name]@hexbear.net to technology@hexbear.netEnglish · 3 months agoAnalysis of bash-stage obfuscation used to hide the liblzma/xz backdoorgynvael.coldwind.plexternal-linkmessage-square2fedilinkarrow-up113arrow-down10file-text
arrow-up113arrow-down1external-linkAnalysis of bash-stage obfuscation used to hide the liblzma/xz backdoorgynvael.coldwind.plunderisk [none/use name]@hexbear.net to technology@hexbear.netEnglish · 3 months agomessage-square2fedilinkfile-text
payload appears to have been hidden in test data then decrypted and injected during the build process.
minus-squareaddie@feddit.uklinkfedilinkEnglisharrow-up3·3 months agoOkay - so it was cleverly hidden. Real question is what the binary blob does, so we can properly assess the damage…
minus-squareunderisk [none/use name]@hexbear.netOPlinkfedilinkEnglisharrow-up2·3 months agoPreliminary stuff I read yesterday suggests that it’s RCE triggered by a signal sent to SSHD. Safest bet is to nuke your system if you had the exploitable library running with an exposed sshd.
Okay - so it was cleverly hidden. Real question is what the binary blob does, so we can properly assess the damage…
Preliminary stuff I read yesterday suggests that it’s RCE triggered by a signal sent to SSHD. Safest bet is to nuke your system if you had the exploitable library running with an exposed sshd.