2018-01-03 14:43:27 -05:00

238 lines
7.1 KiB
Perl

#-----------------------------------------------------------
# svc.pl
# Plugin for Registry Ripper; Access System hive file to get the
# services, display short format (hence "svc", shortened version
# of service.pl plugin); outputs info in .csv format
#
# Change history
# 20131010 - added BackDoor.Kopdel checks
# 20130911 - rewrite; fixed issue with running in rip.exe, removed
# some of the more noisy alerts; added check for FailureActions
# 20130603 - added additional alert functionality
# 20130509 - added alertMsg() functionality, and several alerts
# 20081129 - created
#
# Ref:
# http://msdn.microsoft.com/en-us/library/aa394073(VS.85).aspx
#
# Analysis Tip: Several services keys have Parameters subkeys that point to
# the ServiceDll value; During intrusions, a service key may be added to
# the system's Registry; using this module, send the output to .csv format
# and sort on column B to get the names to line up
#
# Note: some checks/alerts borrowed from E. Schweinsberg's svc_plus.pl
# (bethlogic@gmail.com)
#
# copyright 2013 QAR, LLC
# Author: H. Carvey, keydet89@yahoo.com
#-----------------------------------------------------------
package svc;
#use strict;
my %config = (hive => "System",
hasShortDescr => 1,
hasDescr => 0,
hasRefs => 0,
osmask => 22,
version => 20131010);
sub getConfig{return %config}
sub getShortDescr {
return "Lists Services key contents by LastWrite time (CSV)";
}
sub getDescr{}
sub getRefs {}
sub getHive {return $config{hive};}
sub getVersion {return $config{version};}
my $VERSION = getVersion();
my %obj = ("nt authority\\localservice" => 1,
"nt authority\\networkservice" => 1,
"localsystem" => 1);
my %types = (0x001 => "Kernel driver",
0x002 => "File system driver",
0x004 => "Adapter",
0x010 => "Own_Process",
0x020 => "Share_Process",
0x100 => "Interactive",
0x110 => "Own_Process",
0x120 => "Share_Process");
my %starts = (0x00 => "Boot Start",
0x01 => "System Start",
0x02 => "Auto Start",
0x03 => "Manual",
0x04 => "Disabled");
my $display = "";
my $descr = "";
my $start = "";
my $image = "";
my $dll = "";
my $object = "";
my $para = "";
sub pluginmain {
my $class = shift;
my $hive = shift;
::logMsg("Launching svc v.".$VERSION);
::rptMsg("svc v.".$VERSION); # banner
::rptMsg("(".$config{hive}.") ".getShortDescr()."\n"); # banner
my $reg = Parse::Win32Registry->new($hive);
my $root_key = $reg->get_root_key;
# First thing to do is get the ControlSet00x marked current...this is
# going to be used over and over again in plugins that access the system
# file
my $current;
my $key_path = 'Select';
my $key;
if ($key = $root_key->get_subkey($key_path)) {
$current = $key->get_value("Current")->get_data();
my $ccs = "ControlSet00".$current;
my $s_path = $ccs."\\Services";
my $svc;
my %svcs;
if ($svc = $root_key->get_subkey($s_path)) {
# Get all subkeys
my @subkeys = $svc->get_list_of_subkeys();
if (scalar (@subkeys) > 0) {
foreach my $s (@subkeys) {
$name = $s->get_name();
eval {
$display = $s->get_value("DisplayName")->get_data();
# take commas out of the display name, replace w/ semi-colons
$display =~ s/,/;/g;
};
$display = "" if ($@);
eval {
$type = $s->get_value("Type")->get_data();
(exists $types{$type}) ? ($t = $types{$type}) : ($t = $type);
};
if ($@) {
$type = "";
$t = "";
}
eval {
$image = $s->get_value("ImagePath")->get_data();
# if (($type == 0x01 || $type == 0x02) && ($image ne "")) {
# ::alertMsg("ALERT: svc: ".$name." Driver does not end in \.sys\.") unless ($image =~ m/\.sys$/);
# }
# alertCheckPath($image);
# alertCheckADS($image);
};
$image = "" if ($@);
eval {
$descr = $s->get_value("Description")->get_data();
};
# added 20130911
# ref: http://technet.microsoft.com/en-us/library/cc742019.aspx
eval {
my $fa = $s->get_value("FailureAction")->get_data();
::alertMsg("ALERT: Service ".$name." has FailureAction value: ".$fa);
};
my $st = "";
eval {
$start = $s->get_value("Start")->get_data();
(exists $starts{$start}) ? ($st = $starts{$start}) : ($st = $start);
};
if ($@) {
$start = "";
$st = "";
}
# added 20131010 - Backdoor.Kopdel check
eval {
my $ep = $s->get_value("ErrorPointer")->get_data();
::alertMsg("Alert: svc: ".$name." has ErrorPointer value: ".$ep);
};
# added 20131010 - Backdoor.Kopdel check
eval {
my $eh = $s->get_value("ErrorHandle")->get_data();
::alertMsg("Alert: svc: ".$name." has ErrorHandle value: ".$eh);
};
# WOW64 check added 20131108
eval {
my $w = $s->get_value("WOW64")->get_data();
::alertMsg("Alert: svc: ".$name." has a WOW64 value: ".$w);
};
eval {
$object = $s->get_value("ObjectName")->get_data();
};
$object = "" if ($@);
my $str = $name."\|".$display."\|".$image."\|".$t."\|".$st."\|".$object."\|".$descr;
push(@{$svcs{$s->get_timestamp()}},$str) unless ($str eq "");
# Get ServiceDll value, if there is one
eval {
$para = $s->get_subkey("Parameters");
$dll = $para->get_value("ServiceDll")->get_data();
::alertMsg("ALERT: svc: ".$name." ServiceDll does not end in \.dll\.") unless ($dll =~ m/\.dll$/);
alertCheckPath($dll);
alertCheckADS($dll);
my $str = $name."\\Parameters\|\|".$dll."\|\|\|";
push(@{$svcs{$para->get_timestamp()}},$str);
};
}
::rptMsg("Time,Name,DisplayName,ImagePath/ServiceDll,Type,Start,ObjectName");
foreach my $t (reverse sort {$a <=> $b} keys %svcs) {
foreach my $item (@{$svcs{$t}}) {
my ($n,$d,$i,$t2,$s,$o,$d2) = split(/\|/,$item,7);
# ::rptMsg($t.",".$n.",".$d.",".$i.",".$t2.",".$s.",".$o);
::rptMsg(gmtime($t)." Z,".$n.",".$d.",".$i.",".$t2.",".$s.",".$o.",".$d2);
}
}
}
else {
::rptMsg($s_path." has no subkeys.");
}
}
else {
::rptMsg($s_path." not found.");
}
}
else {
::rptMsg($key_path." not found.");
}
}
#-----------------------------------------------------------
# alertCheckPath()
#-----------------------------------------------------------
sub alertCheckPath {
my $path = shift;
my $lcpath = $path;
$lcpath =~ tr/[A-Z]/[a-z]/;
my @alerts = ("recycle","globalroot","temp","system volume information","appdata",
"application data");
foreach my $a (@alerts) {
if (grep(/$a/,$lcpath)) {
::alertMsg("ALERT: svc: ".$a." found in path: ".$path);
}
}
}
#-----------------------------------------------------------
# alertCheckADS()
#-----------------------------------------------------------
sub alertCheckADS {
my $path = shift;
my @list = split(/\\/,$path);
my $last = $list[scalar(@list) - 1];
# ::alertMsg("ALERT: svc: Poss. ADS found in path: ".$path) if grep(/:/,$last);
}
1;