Common Information
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rule Hive_ESXi_v3 { meta: author = "Andrey Zhdanov" company = "Group-IB" family = "ransomware.hive.esxi" description = "Hive v3 ransomware ESXI payload" severity = 10 score = 100 strings: $h0 = { 48 69 ?? B5 B4 1B 01 48 C1 E? 20 69 ?? 00 70 0E 00 29 ?? } $h1 = { 48 69 ?? 25 30 40 00 48 C1 E? 20 69 ?? 00 F4 0F 00 29 ?? } $a0 = "\\.(vm|vs)\\w+$\x00" $a1 = "vim-cmd vmsvc/getallvms | grep -o -E '^[0-9]+' | xargs -r -n 1 vim-cmd vmsvc/power.off" $b0 = "\x00%s.key.%s\x00" $b1 = "\x00! export %s" $b2 = "\x00+ export %s" $b3 = "HOW_TO_DECRYPT.txt\x00" $b4 = "\x00+notify /etc/motd\x00" $b5 = "\x00+notify %s" $b6 = "\x00+ prenotify %s" $b7 = "\x00Stopping VMs\x00" condition: (uint32(0) == 0x464C457F) and ((2 of ($h*)) or ((1 of ($a*)) and (2 of ($b*)))) } |
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