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

82 lines
2.2 KiB
Perl

#-----------------------------------------------------------
# iejava.pl
#
# Category: Malware
#
# History
# 20130429 - added alertMsg() functionality
# 20130214 - created
#
# References
# http://www.greyhathacker.net/?p=610
#
# See also: http://support.microsoft.com/kb/2751647
#
# Notes: this was seen on a system that was infected with ZeroAccess; during
# the infection process, the key in question was set and the Flags value was
# set to 1.
#
# copyright 2013, Quantum Analytics Research, LLC
# Author: H. Carvey, keydet89@yahoo.com
#-----------------------------------------------------------
package iejava;
use strict;
my %config = (hive => "NTUSER\.DAT",
osmask => 22,
category => "malware",
hasShortDescr => 1,
hasDescr => 0,
hasRefs => 0,
version => 20130429);
sub getConfig{return %config}
sub getShortDescr {
return "Checks NTUSER for status of kill bit for IE Java ActiveX control";
}
sub getDescr{}
sub getRefs {}
sub getHive {return $config{hive};}
sub getVersion {return $config{version};}
my $VERSION = getVersion();
sub pluginmain {
my $class = shift;
my $hive = shift;
::logMsg("Launching iejava v.".$VERSION);
::rptMsg("iejava v.".$VERSION); # banner
::rptMsg("(".$config{hive}.") ".getShortDescr()."\n"); # banner
my $reg = Parse::Win32Registry->new($hive);
my $root_key = $reg->get_root_key;
my $key_path = "Software\\Microsoft\\Windows\\CurrentVersion\\Ext\\Settings\\{8AD9C840-044E-11D1-B3E9-00805F499D93}";
my $key;
if ($key = $root_key->get_subkey($key_path)) {
::rptMsg($key_path);
::rptMsg("LastWrite Time ".gmtime($key->get_timestamp())." (UTC)");
::rptMsg("");
my $flags;
eval {
$flags = $key->get_value("Flags")->get_data();
::rptMsg("Flags: ".$flags);
if ($flags == 1) {
::rptMsg(" If the Flags value is set to 1, the IE Java ActiveX control is disabled,");
::rptMsg(" as if thru IE's \"Manage Add-ons\"\. Note: this NOT setting the kill bit.");
::alertMsg("ALERT: ".$key_path." Flag value set to 1; IE Java ActiveX control disabled\.");
}
};
if ($@) {
::rptMsg("Flags value not found\.");
}
}
else {
::rptMsg($key_path." not found.");
}
}
1;