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

89 lines
2.4 KiB
Perl

#-----------------------------------------------------------
# latentbot.pl
#
#
# Change History
# 20151213 - created
#
# References:
# https://www.fireeye.com/blog/threat-research/2015/12/latentbot_trace_me.html
#
#
# copyright 2015 Quantum Analytics Research,
# Author: H. Carvey, keydet89@yahoo.com
#-----------------------------------------------------------
package latentbot;
use strict;
my %config = (hive => "NTUSER\.DAT",
osmask => 22,
hasShortDescr => 1,
hasDescr => 0,
hasRefs => 0,
version => 20151213);
sub getConfig{return %config}
sub getShortDescr {
return "Check NTUSER.DAT for indications of LatentBot";
}
sub getDescr{}
sub getRefs {}
sub getHive {return $config{hive};}
sub getVersion {return $config{version};}
my $VERSION = getVersion();
sub pluginmain {
my $class = shift;
my $hive = shift;
::logMsg("Launching latentbot v.".$VERSION);
::rptMsg("latentbot v.".$VERSION); # banner
::rptMsg("(".$config{hive}.") ".getShortDescr()."\n");
my $reg = Parse::Win32Registry->new($hive);
my $root_key = $reg->get_root_key;
my $key;
my $key_path = "Software\\Microsoft\\Windows NT\\CurrentVersion\\Windows";
if ($key = $root_key->get_subkey($key_path)) {
::rptMsg($key_path);
::rptMsg("LastWrite Time ".gmtime($key->get_timestamp())." (UTC)");
# 20151213: LatentBot persists via the 'load' value
# https://www.fireeye.com/blog/threat-research/2015/12/latentbot_trace_me.html
# look for odd value data, such as "dlrznz68mkaa.exe"
my $load;
eval {
$load = $key->get_value("load")->get_data();
::rptMsg("load value = ".$load);
::alertMsg("ALERT: user_run: ".$key_path." load value found: ".$load) unless ($load eq "");
};
if ($@) {
::rptMsg("load value not found.");
}
}
::rptMsg("");
# Look for odd, randomly named subkeys, which may indicate the existence of the
# modules; the names aren't actually random, but XOR encoded
$key_path = "Software\\Google\\Update\\network\\secure";
if ($key = $root_key->get_subkey($key_path)) {
my @subkeys;
eval {
@subkeys = $key->get_list_of_subkeys();
if (scalar @subkeys > 0) {
::rptMsg($key_path);
::rptMsg("LastWrite Time ".gmtime($key->get_timestamp())." (UTC)");
foreach my $s (@subkeys) {
::rptMsg(" ".$s->get_name()." - ".gmtime($s->get_timestamp())." (UTC)");
}
}
else {
}
};
}
}
1;