When attempting to update cached payload sizes which utilize the
Rex::Powershell functionality, the BRE block which appropriates
initial code is called with the 'code' variable being a nil which
results in:
```
lib/rex/powershell/script.rb:40:in `initialize': no implicit
conversion of nil into String (TypeError)
```
This throws a conditional into the File.open call which presents an
empty string instead of a nil. This still results in the rescue
block having to catch the exception, but manages to keep the
payload size updating script happy an retains consistent
behavior.
It should not look like this:
```
meterpreter > ps -h
Usage: ps [ options ]
OPTIONS:
-S Search string to filter by
-h This help menu
```
It should not not look like this:
```
meterpreter > ps -h
Use the command with no arguments to see all running processes.
The following options can be used to filter those results:
OPTIONS:
-A <opt> Filters processes on architecture (x86 or x86_64)
-S <opt> String to search for (converts to regex)
-U <opt> Filters processes on the user using the supplied RegEx
-h Help menu.
-s Show only SYSTEM processes
```
Allow searching through netstat output tables for specific strings.
Example:
```
meterpreter > netstat -S 192
Connection list
===============
Proto Local address Remote address State User Inode PID/Program name
----- ------------- -------------- ----- ---- ----- ----------------
tcp 10.1.1.20:3389 192.168.100.186:38470 ESTABLISHED 0 0 3076/svchost.exe
tcp 10.1.1.20:63826 192.168.100.186:31158 ESTABLISHED 0 0 4568/powershell.exe
tcp 10.1.1.20:64887 192.168.100.186:31158 ESTABLISHED 0 0 -
```
from @sempervictus
Merge forked changes to cmd_ps allowing for the use of string
matching on listing output via Rex::Ui::Text::Table's SearchTerm
facility
Example:
```
meterpreter > ps -S x64.*Auth.*Sys
Process list
============
PID Name Arch Session User Path
--- ---- ---- ------- ---- ----
400 smss.exe x64 0 NT AUTHORITY\SYSTEM C:\Windows\System32\smss.exe
...
```
from @sempervictus
Allow passing 'SearchTerm' into Rex::Ui::Text::Table creation to
filter all output by regex match to the string passed.
Provides base functionality for higher level subscribers such as
cmd_ls in meterpreter sessions for filtering output
from @sempervictus
Merge forked changes to cmd_ls allowing for the use of string
matching on listing output via Rex::Ui::Text::Table's SearchTerm
facility.
Example:
```
meterpreter > ls chef -R -S wget
No entries exist in chef/backup/chef/handlers
No entries exist in chef/backup/chef/ohai_plugins
No entries exist in chef/backup/chef
No entries exist in chef/backup
No entries exist in chef/cache/cookbooks/avast/attributes
No entries exist in chef/cache/cookbooks/avast/recipes
No entries exist in chef/cache/cookbooks/avast
No entries exist in chef/cache/cookbooks/chef-client/attributes
No entries exist in chef/cache/cookbooks/chef-client/libraries
No entries exist in chef/cache/cookbooks/chef-client/recipes
No entries exist in chef/cache/cookbooks/chef-client
No entries exist in chef/cache/cookbooks/chef_handler/attributes
No entries exist in chef/cache/cookbooks/chef_handler/libraries
No entries exist in chef/cache/cookbooks/chef_handler/providers
No entries exist in chef/cache/cookbooks/chef_handler/recipes
No entries exist in chef/cache/cookbooks/chef_handler/resources
No entries exist in chef/cache/cookbooks/chef_handler
No entries exist in chef/cache/cookbooks/cron/providers
No entries exist in chef/cache/cookbooks/cron/recipes
No entries exist in chef/cache/cookbooks/cron/resources
No entries exist in chef/cache/cookbooks/cron
No entries exist in chef/cache/cookbooks/logrotate/attributes
No entries exist in chef/cache/cookbooks/logrotate/definitions
No entries exist in chef/cache/cookbooks/logrotate/libraries
No entries exist in chef/cache/cookbooks/logrotate/recipes
No entries exist in chef/cache/cookbooks/logrotate
No entries exist in chef/cache/cookbooks/ohai/attributes
No entries exist in chef/cache/cookbooks/ohai/files/default/plugins
No entries exist in chef/cache/cookbooks/ohai/files/default
No entries exist in chef/cache/cookbooks/ohai/files
No entries exist in chef/cache/cookbooks/ohai/recipes
No entries exist in chef/cache/cookbooks/ohai
No entries exist in chef/cache/cookbooks/svit-windows/attributes
No entries exist in chef/cache/cookbooks/svit-windows/recipes
No entries exist in chef/cache/cookbooks/svit-windows/templates/default/plugins
No entries exist in chef/cache/cookbooks/svit-windows/templates/default
No entries exist in chef/cache/cookbooks/svit-windows/templates
No entries exist in chef/cache/cookbooks/svit-windows
No entries exist in chef/cache/cookbooks/windows/attributes
No entries exist in chef/cache/cookbooks/windows/files/default/handlers
No entries exist in chef/cache/cookbooks/windows/files/default
No entries exist in chef/cache/cookbooks/windows/files
No entries exist in chef/cache/cookbooks/windows/libraries
No entries exist in chef/cache/cookbooks/windows/providers
No entries exist in chef/cache/cookbooks/windows/recipes
No entries exist in chef/cache/cookbooks/windows/resources
No entries exist in chef/cache/cookbooks/windows
No entries exist in chef/cache/cookbooks
No entries exist in chef/cache
No entries exist in chef/handlers
No entries exist in chef/log
No entries exist in chef/ohai_plugins
No entries exist in chef/run
Listing: chef
=============
Mode Size Type Last modified Name
---- ---- ---- ------------- ----
100666/rw-rw-rw- 161 fil 2014-07-21 11:08:26 -0400 wget.ps1
100666/rw-rw-rw- 1285 fil 2014-07-21 11:08:26 -0400 wget.vbs
meterpreter >
```
This psexec payload size should be evaluated to make sure I'm not doing
anything stupid. i can't see a reason why increasing these sizes would
be bad. They seem to work fine.
this rpc method allows the user to change transport
on an existing meterp session. if it's successful
it will close the old 'session' tied to the rpevious transport
MSP-12722
MSP-9532
* Increase to reasonable size to handle larger xml file expansion on import
* Prevents the 'RuntimeError entity expansion has grown too large' error that prevents import
Tried to implement some more of the stuff that egypt suggested, managed
to get some in, but not others. Ultimately, its smaller than it was, and
I'm sure there are ways to make it better as well.
For some reason this was only working on Windows7/2008, yet when tired
on Windows 2012 it was resulting in crashes. It was also stopping
working in exploits such as psexec_psh.
Went back to the beginning and started again. With this in place, we can
now do a bit of shellcode golf to make it a bit smaller.
Adjusted payload sizes as well.
jvazquez-r7
wchen-r7
Tod Beardsley
OJ
Brent Cook
g0tmi1k
Th3R3p0
William Vu
HD Moore
David Maloney
benpturner
RageLtMan
Samuel Huckins
Spencer McIntyre
Michael Messner
root
Christian Catalan
Tim