Executive Summary of PhoneSweep Scan

Profile Name:                                       BOSTON_OFFICE_1_AUG2001,

                                                            BOSTON_OFFICE_2_AUG2001,

                                                            BOSTON_OFFICE_3_AUG2001

 

Report Generated:                                Friday, August 24 2001 13:53:06

 

Time of First Call:                                 Monday, August 06 2001 15:06:53

Time of Last Call:                                 Monday, August 06 2001 17:51:00

 

Elapsed Time During Scan:                   2 hours, 45 minutes, 53 seconds

 

Phone Numbers Assigned to Dial:         74

Number of calls made:                          176

 

Phone Numbers Dialed using Single Call Detect™:        74

Phone Numbers Dialed using Data-only Mode: 74

Phone Numbers Dialed using Fax-only Mode:   68

 

Phone Numbers Checked for Data:       74

Phone Numbers Checked for Fax:        68

 

Search for modems completed:                         100.0%

Search for fax machines completed:                   91.9%

Username/password guessing completed:          0.0%

 

Modems found:                                    22

Systems compromised:                         n/a

 

When the report was generated, PhoneSweep was configured to scan for both fax machines and modems. 

PhoneSweep was configured to only connect to modems, but not to identify or attempt to penetrate them.

There were a total of 176 simulated calls made in this profile when the report was generated.

 

Profile Notes:

BOSTON_OFFICE_1_AUG2001 Created Mon Aug 6 14:40:33 2001

BOSTON_OFFICE_2_AUG2001 Created Mon Aug 6 14:48:04 2001

BOSTON_OFFICE_3_AUG2001 Created Mon Aug 6 14:49:03 2001

 

 

Engineering Summary of PhoneSweep Scan

Profile Name:                                                         BOSTON_OFFICE_1_AUG2001,

                                                                                BOSTON_OFFICE_2_AUG2001,

                                                                                BOSTON_OFFICE_3_AUG2001

 

Scan Started:                                                         Monday, August 06 2001 15:06:53

Scan Stopped:                                                      Monday, August 06 2001 15:26:00

Elapsed time:                                                         15 minutes, 18 seconds

 

Report Generated:                                                Friday, August 24 2001 13:53:06

 

Introduction:

PhoneSweep is a program developed by Sandstorm Enterprises (http://www.sandstorm.net) to search for modems within a set of phone numbers.  PhoneSweep attempts to identify systems attached to remote modems as well as attempting to find areas of poor security by guessing common usernames and passwords.

Some modems are of higher quality than others, and can report more information about a remote phone number.  These modems can recognize remote fax machines, phones answered by human beings, or simply just when a remote number is ringing.  Sandstorm Enterprises, Inc. makes available a recommended modem list, including modems known to work well with PhoneSweep.

Without a recommended modem, PhoneSweep must rely on a time-based timeout to end a connection.  It will only be able to differentiate between calls to modems, busy signals, and calls that timed out.  PhoneSweep will not then include a list of fax, voice, and ring timeout numbers.

PhoneSweep Terminology:

Term

Definition

 

Anomaly

An “anomaly” is a PhoneSweep result that is not consistent and should be investigated.  For instance, if a phone number is answered once with “carrier” (answered by a modem) but later on answered by a human voice, this is an anomaly and may indicate an unauthorized modem.

Brute force password guessing

“Brute Force” username password guessing means that PhoneSweep will call a remote number, and offer one of its assigned username/password pairs.

Compromised or Penetrated

A system has been “compromised” or “penetrated” if PhoneSweep was able to guess a valid username and password for that system, or the system allowed access without a username and password. 

PhoneSweep

A program developed by Sandstorm Enterprises (www.sandstorm.net) to search for modems within a set of phone numbers.  PhoneSweep can attempt to identify systems attached to remote modems as well as attempting to find areas of poor security by guessing common usernames and passwords.

Scan or Sweep

A PhoneSweep “scan” or “sweep” is a series of calls to a list of assigned numbers to search for modems, and possibly identify or attempt to penetrate the attached systems.

Username/password recycling

If PhoneSweep is “recycling” usernames and passwords, then it will attempt to brute force the entire username/password list on each modem that it finds.  If it is not recycling, it will use each username/password pair on its list only once.

Call Response States:

Call response state

Explanation

Busy

This phone number was always busy when dialed.  If a busy number is later redialed and is not busy, it is listed under the other category.  

 

Carrier

The remote phone number responded with a carrier signal; a tone signal that indicates a computer is attached to the other end.  A carrier signal means that electronic data transfer between two computers is possible, which may mean that network-based security can be evaded. Numbers with “carrier” are also referred to as numbers with modems attached.

Fax

A fax machine answered the remote phone line.

Ring Timeout

If your modem can detect when a remote phone number is ringing, PhoneSweep will record calls that ring past a limit as “Ring Timeout”.  The ring limit varies based on the time period during which the phone number was called.

Screened

A phone number is “screened” if the first part of the number is “9911” or “911”.  Screening is designed to prevent accidental calls to emergency numbers in certain countries, including the United States and Canada.

Timeout

 PhoneSweep has timeout settings that vary depending on the time period in which the phone number was dialed.  If the remote number is not ringing (or your modem cannot detect rings), and nothing answers the phone, the call times out.

 

Tone

The remote phone number answered with a dial tone.  “Tone” calls may indicate a number that an unauthorized person may use to make toll calls at your expense.  These should be checked to make sure that they cannot be misused.

Voice

If you have a modem that can detect voice, then PhoneSweep will mark human-answered calls as “voice”.  Answering machines and voicemail systems will also qualify as voice.

 

Dialed Phone Numbers:

 

Total Phone Numbers With This Result

Percent of Total Phone Numbers

Assigned to Dial

74

100.0%*

Checked for Data

74

100.0%*

Carrier

22

29.7%

Tone

4

5.4%

Busy

6

8.1%

Ring Timeout

11

14.9%

Timeout

23

31.1%

Voice

3

4.1%

Screened

0

0.0%

 

* As a percent of the total numbers assigned to dial, as opposed to actually dialed.

The percentages may not add to 100 percent and there may be more distinct results than assigned phone numbers.  This can happen if a phone number responded in two different ways.  Also, if the scan was not completed, the numbers will be less than 100 percent.

Discovered Fax Machines:

               

Total  Phone Numbers With This Result

Percent of Total Phone Numbers

Assigned to Dial

74

100.0%

Checked for Fax

68

91.9%

Faxes found:

10

13.5%

Screened:

0

0.0%

Discovered Modems:

               

Total  Phone Numbers With This Result

Percent of  Phone Numbers With Carrier

Numbers with Carrier:

22

100.0%

Identified

22

100.0%

Unidentified

n/a

n/a

Penetrated Modems:

 

Count of systems penetrated

Percent of total penetrated systems

Penetrated Systems

n/a

n/a

Identified

n/a

n/a

Unidentified

n/a

n/a

 

Percent of Brute force username/password guessing attempts completed: 0.0%

Anomalies:

555-1017 responded with carrier as well as fax:  a fax/modem is hooked up to this phone number.

555-1025 responded with carrier as well as fax:  a fax/modem is hooked up to this phone number.

555-1033 responded with carrier as well as fax:  a fax/modem is hooked up to this phone number.

555-2003 responded with carrier as well as fax:  a fax/modem is hooked up to this phone number.

Systems Penetrated by PhoneSweep:

PhoneSweep did not succeed in penetrating any systems.

Carrier Numbers Found:

The following numbers responded with a modem carrier, allowing access to that system.  This means that an outside person may be able to connect to your network through these numbers.

We recommend that you compare with known modem numbers, and that all modem lines be further checked to be sure that strong security is in place.  Examples of poor modem security include (but are not limited to) systems without any passwords or systems with well-known or easily guessed usernames and passwords.

555-1003                 555-1005                 555-1007

555-1013                 555-1015                 555-1017

555-1023                 555-1025                 555-1027

555-1033                 555-2003                 555-2005

555-2007                 555-2013                 555-2015

555-2017                 555-2023                 555-8703

555-8705                 555-8707                 555-8713

781-555-5555        

Busy Numbers Found:

The following numbers were always busy when called by PhoneSweep.  They may be leased lines, or voice or data lines that happened to be busy whenever PhoneSweep checked them.  We recommend these numbers be checked further to ensure that they are not unauthorized modems.

555-1009                 555-1019                 555-1029

555-2009                 555-2019                 555-8709

 

These always busy telephone numbers can be re-scanned by increasing the Busy Redial value on the Dial Sub-Tab.  When this report was generated, Busy Redial was set to 5.

Tone Numbers Found:

The following numbers returned a second dial tone when called by PhoneSweep.  These numbers should be closely checked to ensure that outsiders cannot make calls through an internal exchange.  If these tone numbers allow long-distance or international calls, you may be a target for expensive telephone fraud.

555-1030                 555-2006                 555-2010

555-8701                

Fax Numbers Found:

The following numbers responded with a FAX tone when PhoneSweep scanned them.  FAX machines do not represent a security risk, although FAX numbers which also responded with Carrier could be unauthorized or misconfigured fax/modems.

555-1006                 555-1008                 555-1017

555-1018                 555-1025                 555-1033

555-2001                 555-2003                 555-2014

555-8704                

Incomplete Scan Areas:

PhoneSweep did not complete scanning for fax machines.  Of the 74 phone numbers assigned for PhoneSweep to call, only 68 (91.9%) were actually called.

Identified Systems with Modems:

555-1003 -PC Anywhere

555-1005 - PPP (MS-CHAP)

555-1007 - PPP (MS-CHAP)

555-1013 - FreeBSD (UNIX)

555-1015 - FreeBSD (UNIX)

555-1017 - FreeBSD (UNIX)

555-1023 - FreeBSD (UNIX)

555-1025 - FreeBSD (UNIX)

555-1027 - FreeBSD (UNIX)

555-1033 - FreeBSD (UNIX)

555-2003 - FreeBSD (UNIX)

555-2005 - PC Anywhere

555-2007 - FreeBSD (UNIX)

555-2013 - PPP (MS-CHAP)

555-2015 - PPP (MS-CHAP)

555-2017 - FreeBSD (UNIX)

555-2023 - FreeBSD (UNIX)

555-8703 - PPP (MS-CHAP)

555-8705 - FreeBSD (UNIX)

555-8707 - FreeBSD (UNIX)

555-8713 - FreeBSD (UNIX)

781-555-5555 - PC Anywhere

 

Unidentified Carrier Numbers:

PhoneSweep did not discover any modems it could not identify during this sweep.

Responses from Penetrated Systems:

No responses were received from penetrated modems during this PhoneSweep scan.

Responses From Unknown Modems:

PhoneSweep did not receive any response strings from unknown modems.

 

Appendix A: Responses from target modems

 

This section suppressed by request.

Appendix B:  Phone Number Taxonomy

Number:                 Result:

555-1000 TIMEOUT

555-1001 TIMEOUT

555-1002 TIMEOUT

555-1003 CARRIER - PC Anywhere

555-1004 RING_TIMEOUT

555-1005 CARRIER - PPP (MS-CHAP)

555-1006 FAX

555-1007 CARRIER -PPP (MS-CHAP)

555-1008 FAX

555-1009 BUSY

555-1010 RING_TIMEOUT

555-1011 TIMEOUT

555-1012 TIMEOUT

555-1013 CARRIER - FreeBSD (UNIX)

555-1014 RING_TIMEOUT

555-1015 CARRIER - FreeBSD (UNIX)

555-1016 TIMEOUT

555-1017 CARRIER - FreeBSD (UNIX)

555-1017 FAX

555-1018 FAX

555-1019 BUSY

555-1020 TIMEOUT

555-1021 TIMEOUT

555-1022 TIMEOUT

555-1023 CARRIER - FreeBSD (UNIX)

555-1024 TIMEOUT

555-1025 CARRIER - FreeBSD (UNIX)

555-1025 FAX

555-1026 RING_TIMEOUT

555-1027 CARRIER - FreeBSD (UNIX)

555-1028 TIMEOUT

555-1029 BUSY

555-1030 TONE

555-1031 TIMEOUT

555-1032 RING_TIMEOUT

555-1033 CARRIER - FreeBSD (UNIX)

555-1033 FAX

555-2000 RING_TIMEOUT

555-2001 FAX

555-2002 TIMEOUT

555-2003 CARRIER - FreeBSD (UNIX)

555-2003 FAX

555-2004 TIMEOUT

555-2005 CARRIER - PC Anywhere

555-2006 TONE

555-2007 CARRIER - FreeBSD (UNIX)

555-2008 TIMEOUT

555-2009 BUSY

555-2010 TONE

555-2011 RING_TIMEOUT

555-2012 TIMEOUT

555-2013 CARRIER - PPP (MS-CHAP)

555-2014 FAX

555-2014 VOICE

555-2015 CARRIER - PPP (MS-CHAP)

555-2016 TIMEOUT

555-2017 CARRIER - FreeBSD (UNIX)

555-2018 RING_TIMEOUT

555-2019 BUSY

555-2020 TIMEOUT

555-2021 TIMEOUT

555-2022 RING_TIMEOUT

555-2023 CARRIER - FreeBSD (UNIX)

555-2024 TIMEOUT

555-8700 VOICE

555-8701 TONE

555-8702 TIMEOUT

555-8703 CARRIER - PPP (MS-CHAP)

555-8704 FAX

555-8705 CARRIER - FreeBSD (UNIX)

555-8706 VOICE

555-8707 CARRIER - FreeBSD (UNIX)

555-8708 RING_TIMEOUT

555-8709 BUSY

555-8710 TIMEOUT

555-8711 TIMEOUT

555-8712 RING_TIMEOUT

555-8713 CARRIER - FreeBSD (UNIX)

781-555-5555         CARRIER - PC Anywhere

 

Appendix C: List of all calls and their results 

 

Call time:                                                                Number:                 Result:

 

This section suppressed by request.