2012-03-16 15:17:56 -04:00

133 lines
3.3 KiB
Perl

#-----------------------------------------------------------
# arpcache.pl
# Retrieves CurrentVersion\App Management\ARPCache entries; subkeys appear
# to maintain information about paths to installed applications in the
# SlowInfoCache value(0x10 - FILETIME object, null term. string with path
# starts at 0x1c)
#
# Change history
# 20090413 - Created
#
# References
# No references, but the subkeys appear to hold information about
# installed applications; some SlowInfoCache values appear to contain
# timestamp data (FILETIME object) and/or path information. Posts on
# the Internet indicate the existence of Kazaa beneath the APRCache key,
# as well as possibly an "Outerinfo" subkey indicating that spyware is
# installed.
#
# copyright 2009 H. Carvey
#-----------------------------------------------------------
package arpcache;
use strict;
my %config = (hive => "NTUSER\.DAT",
hasShortDescr => 1,
hasDescr => 0,
hasRefs => 0,
osmask => 22,
version => 20090413);
sub getConfig{return %config}
sub getShortDescr {
return "Retrieves CurrentVersion\\App Management\\ARPCache entries";
}
sub getDescr{}
sub getRefs {}
sub getHive {return $config{hive};}
sub getVersion {return $config{version};}
my $VERSION = getVersion();
my %arpcache;
sub pluginmain {
my $class = shift;
my $ntuser = shift;
::logMsg("Launching arpcache v.".$VERSION);
my $reg = Parse::Win32Registry->new($ntuser);
my $root_key = $reg->get_root_key;
my $key_path = 'Software\\Microsoft\\Windows\\CurrentVersion\\App Management\\ARPCache';
my $key;
if ($key = $root_key->get_subkey($key_path)) {
::rptMsg($key_path);
::rptMsg("LastWrite Time ".gmtime($key->get_timestamp())." (UTC)");
::rptMsg("");
my @subkeys = $key->get_list_of_subkeys();
if (scalar(@subkeys) > 0) {
foreach my $s (@subkeys) {
my $lw = $s->get_timestamp();
my $name = $s->get_name();
my $path;
eval {
my $i = $s->get_value("SlowInfoCache")->get_data();
$path = parsePath($i);
};
($@) ? ($name .= "|") : ($name .= "|".$path);
my $date;
eval {
my $i = $s->get_value("SlowInfoCache")->get_data();
$date = parseDate($i);
};
($@) ? ($name .= "|") : ($name .= "|".$date);
push(@{$arpcache{$lw}},$name);
}
foreach my $t (reverse sort {$a <=> $b} keys %arpcache) {
::rptMsg(gmtime($t)." (UTC)");
foreach my $item (@{$arpcache{$t}}) {
my ($name,$path,$date) = split(/\|/,$item,3);
::rptMsg(" ".$name);
my $str = $path unless ($path eq "");
$str .= " [".gmtime($date)."]" unless ($date == 0);
::rptMsg(" -> ".$str) unless ($str eq "");
}
}
}
else {
::rptMsg($key_path." has no subkeys.");
::logMsg($key_path." has no subkeys.");
}
}
else {
::rptMsg($key_path." not found.");
::logMsg($key_path." not found.");
}
}
1;
sub parseDate {
my $data = shift;
my ($t1,$t2) = unpack("VV",substr($data,0x10,8));
return ::getTime($t1,$t2);
}
sub parsePath {
my $data = shift;
my $ofs = 0x1c;
my $tag = 1;
my $str = substr($data,$ofs,2);
if (unpack("v",$str) == 0) {
return "";
}
else {
while($tag) {
$ofs += 2;
my $i = substr($data,$ofs,2);
if (unpack("v",$i) == 0) {
$tag = 0;
}
else {
$str .= $i;
}
}
}
$str =~ s/\00//g;
return $str;
}