5.7 KiB
Internet Relay Chat Probe (IRCP)
A robust information gathering tool for large scale reconnaissance on Internet Relay Chat servers, made for future usage with internetrelaychat.org for public statistics on the protocol.
Meant to be used in combination with masscan checking 0.0.0.0/0 (the entire IPv4 range) for port 6667.
The idea is to create a proof-of-concept documenting how large-scale information gathering on the IRC protocol can be malicious & invasive to privacy.
Order of Operations
First, an attempt to connect using SSL/TLS on port 6697 is made, which if it fails, will fall back to a standard connection on port 6667.
Once connected, server information is gathered from LUSERS, VERSION, LINKS, MAP, ADMIN, MOTD, LIST, replies.
An attempt to register a nickname is then made by trying to contact NickServ.
Next, every channel is joined with a WHO command sent & every new nick found gets a WHOIS.
Everything is done in a heavily throttled manner for stealth to avoid detection.
Opt-out
The IRC networks we scanned are PUBLIC networks...any person can freely connect & parse the same information. Send your hate mail to scan@internetrelaychat.org
Config
Settings
| Setting | Default Value | Description |
|---|---|---|
errors |
False |
Show errors in console |
nickname |
"IRCP" |
IRC nickname (None = random) |
username |
"ircp" |
IRC username (None = random) |
realname |
"internetrelaychat.org" |
IRC realname (None = random) |
ns_mail |
"scan@internetrelaychat.org" |
NickServ email address (None = random) |
ns_pass |
"changeme" |
NickServ password (None = random) |
vhost |
None |
Bind to a specific IP address |
Throttle
| Setting | Default Value | Description |
|---|---|---|
channels |
3 |
Maximum number of channels to scan at once |
delay |
120 |
Delay before registering nick (if enabled) & sending LIST |
join |
10 |
Delay between channel JOIN |
nick |
300 |
Delay between every random NICK change |
part |
3 |
Delay before PART from channel |
threads |
100 |
Maximum number of threads running |
timeout |
15 |
Timeout for all sockets |
whois |
3 |
Delay between WHOIS requests |
ztimeout |
200 |
Timeout for zero data from server |
Collected Information
All of the raw data from a server is logged & stored. The categories below are stored seperately & hilight the key information we are after:
Server Information
| Numeric | Title |
|---|---|
| 001 | RPL_WELCOME |
| 002 | RPL_YOURHOST |
| 003 | RPL_CREATED |
| 004 | RPL_MYINFO |
| 005 | RPL_ISUPPORT |
| 372 | RPL_MOTD |
| 351 | RPL_VERSION |
| 364 | RPL_LINKS |
| 006 | RPL_MAP |
| 018 | RPL_MAPUSERS |
| 257 | RPL_ADMINLOC1 |
| 258 | RPL_ADMINLOC2 |
| 259 | RPL_ADMINEMAIL |
Statistics Information (LUSERS)
| Numeric | Title |
|---|---|
| 250 | RPL_STATSCONN |
| 251 | RPL_LUSERCLIENT |
| 252 | RPL_LUSEROP |
| 254 | RPL_LUSERCHANNELS |
| 255 | RPL_LUSERME |
| 265 | RPL_LOCALUSERS |
| 266 | RPL_GLOBALUSERS |
Channel Information
| Numeric | Title |
|---|---|
| 332 | RPL_TOPIC |
| 353 | RPL_NAMREPLY |
| 322 | RPL_LIST |
User Information (WHOIS/WHO)
| Numeric | Title |
|---|---|
| 311 | RPL_WHOISUSER |
| 307 | RPL_WHOISREGNICK |
| 312 | RPL_WHOISSERVER |
| 671 | RPL_WHOISSECURE |
| 319 | RPL_WHOISCHANNELS |
| 320 | RPL_WHOISSPECIAL |
| 276 | RPL_WHOISCERTFP |
| 330 | RPL_WHOISACCOUNT |
| 338 | RPL_WHOISACTUALLY |
| 352 | RPL_WHOREPLY |
Bad Numerics
| Numeric | Title |
|---|---|
| 470 | ERR_LINKCHANNEL |
| 471 | ERR_CHANNELISFULL |
| 473 | ERR_INVITEONLYCHAN |
| 474 | ERR_BANNEDFROMCHAN |
| 475 | ERR_BADCHANNELKEY |
| 477 | ERR_NEEDREGGEDNICK |
| 489 | ERR_SECUREONLYCHAN |
| 519 | ERR_TOOMANYUSERS |
| 520 | ERR_OPERONLY |
| 464 | ERR_PASSWDMISMATCH |
| 465 | ERR_YOUREBANNEDCREEP |
| 466 | ERR_YOUWILLBEBANNED |
| 421 | ERR_UNKNOWNCOMMAND |
Preview
Todo
- Capture
IRCOPS&STATS pcommand outputs - Built in identd
- Checking for IPv6 availability (SSL= in 005 responses may help verify IPv6)
- Support for IRC servers using old versions of SSL