mirror of
https://github.com/overcuriousity/autopsy-flatpak.git
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154 lines
4.3 KiB
Perl
154 lines
4.3 KiB
Perl
#! c:\perl\bin\perl.exe
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#-----------------------------------------------------------
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# del.pl
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#
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#
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# Change history
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# 20190506 - updated
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# 20140807 - created
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#
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# References:
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# https://metacpan.org/pod/Parse::Win32Registry
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# https://github.com/msuhanov/regf/blob/master/Windows%20registry%20file%20format%20specification.md
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#
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#
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# copyright 2019 QAR, LLC
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# Author: H. Carvey
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#-----------------------------------------------------------
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package del;
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use strict;
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my %config = (hive => "All",
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hasShortDescr => 1,
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hasDescr => 0,
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hasRefs => 0,
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osmask => 22,
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category => "deleted",
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version => 20190506);
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sub getConfig{return %config}
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sub getShortDescr {
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return "Parse hive, print deleted keys/values";
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}
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sub getDescr{}
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sub getRefs {}
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sub getHive {return $config{hive};}
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sub getVersion {return $config{version};}
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my $VERSION = getVersion();
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my %data_types = (0 => "REG_NONE",
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1 => "REG_SZ",
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2 => "REG_EXPAND_SZ",
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3 => "REG_BINARY",
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4 => "REG_DWORD",
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5 => "REG_DWORD_BIG_ENDIAN",
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6 => "REG_LINK",
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7 => "REG_MULTI_SZ",
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8 => "REG_RESOURCE_LIST",
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9 => "REG_FULL_RESOURCE_DESCRIPTOR",
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10 => "REG_RESOURCE_REQUIREMENTS_LIST",
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11 => "REG_QWORD");
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my %regkeys;
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sub pluginmain {
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my $class = shift;
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my $file = shift;
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my $reg = Parse::Win32Registry->new($file);
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::logMsg("Launching del v.".$VERSION);
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::rptMsg("del v.".$VERSION); # banner
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::rptMsg("(".getHive().") ".getShortDescr()."\n"); # banner
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my $entry_iter = $reg->get_entry_iterator;
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while (defined(my $entry = $entry_iter->get_next)) {
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next if $entry->is_allocated;
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# printf "0x%x ", $entry->get_offset;
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# print $entry->unparsed()."\n";
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my $data = $entry->get_raw_bytes();
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my $len = length($data);
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next if ($len <= 8);
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::rptMsg("------------- Deleted Data ------------");
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# Value node header is 20 bytes, w/o name string
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# Key node header is 76 bytes, w/o name string
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if ($len >= 20) {
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my $cursor = 0;
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while ($cursor < $len) {
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if (unpack("v",substr($data,$cursor,2)) == 0x6b76) {
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# ::rptMsg("Value node found at ".$cursor);
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parseValueNode($data,$cursor);
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$cursor += 0x12;
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}
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elsif (unpack("v",substr($data,$cursor,2)) == 0x6b6e) {
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# ::rptMsg("Key node found at ".$cursor);
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parseKeyNode($data,$cursor);
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$cursor += 0x4a;
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}
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else {
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$cursor++;
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}
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}
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}
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::rptMsg($entry->unparsed());
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}
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}
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sub parseValueNode {
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my $data = shift;
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my $ofs = shift;
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my $name_len = unpack("v",substr($data,$ofs + 0x02,2));
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my $data_len = unpack("V",substr($data,$ofs + 0x04,4));
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my $data_ofs = unpack("V",substr($data,$ofs + 0x08,4));
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my $data_type = unpack("V",substr($data,$ofs + 0x0c,4));
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my $data_flag = unpack("v",substr($data,$ofs + 0x10,2));
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my $name;
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if (($ofs + 0x14 + $name_len) <= length($data)) {
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$name = substr($data,$ofs + 0x14,$name_len);
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::rptMsg("Value Name: ".$name);
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::rptMsg(sprintf "Data Length: 0x%x Data Offset: 0x%x Data Type: ".$data_types{$data_type},$data_len,$data_ofs);
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}
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}
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sub parseKeyNode {
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my $data = shift;
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my $ofs = shift;
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my $len = length($data);
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if ($len > 75 && $ofs >= 4) {
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my $size = unpack("i",substr($data,$ofs - 4,4));
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$size = ($size * -1) if ($size < 0);
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# ::rptMsg("Key node size = ".$size);
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my $type = unpack("v",substr($data,$ofs + 0x02,2));
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# ::rptMsg(sprintf "Node Type = 0x%x",$type);
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my ($t1,$t2) = unpack("VV",substr($data,$ofs + 0x04,8));
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my $lw = ::getTime($t1,$t2);
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# ::rptMsg("Key LastWrite time = ".gmtime($lw)." UTC");
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my $parent_ofs = unpack("V",substr($data,$ofs + 0x10,4));
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my $sk = unpack("V",substr($data,$ofs + 0x14,4));
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# ::rptMsg("Number of subkeys: ".$sk);
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my $vals = unpack("V",substr($data,$ofs + 0x24,4));
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# ::rptMsg("Number of values: ".$vals);
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my $len_name = unpack("V",substr($data,$ofs + 0x48,4));
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# print "Name Length: ".$len_name."\n";
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my $name;
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if (($ofs + 0x4c + $len_name) <= $len) {
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$name = substr($data,$ofs + 0x4c,$len_name);
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::rptMsg("Key name: ".$name);
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}
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::rptMsg("Key LastWrite time = ".gmtime($lw)." UTC");
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::rptMsg(sprintf "Offset to parent: 0x%x",$parent_ofs);
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}
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}
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1; |