Alright friends,
I have discovered this during my current project and I have the
following nmap data for your review:
***
Starting nmapNT V. 2.53 by ryan_at_eEye.com
eEye Digital Security ( http://www.eEye.com )
based on nmap by fyodor_at_insecure.org ( www.insecure.org/nmap/ )
Host (x.x.x.x) appears to be up ... good.
Initiating SYN half-open stealth scan against (x.x.x.x)
Adding TCP port 23 (state open).
Adding TCP port 2001 (state open).
The SYN scan took 48 seconds to scan 2002 ports.
For OSScan assuming that port 23 is open and port 1 is closed and
neither are firewalled
For OSScan assuming that port 23 is open and port 1 is closed and
neither are firewalled
For OSScan assuming that port 23 is open and port 1 is closed and
neither are firewalled
Interesting ports on (x.x.x.x):
(The 1997 ports scanned but not shown below are in state: closed)
Port State Service
23/tcp open telnet
137/tcp filtered unknown
138/tcp filtered unknown
139/tcp filtered unknown
2001/tcp open unknown
TCP Sequence Prediction: Class=random positive increments
Difficulty=93083 (Worthy challenge)
Sequence numbers: 4F8A9A07 4F95D37A 4FA1A007 4FAB4025 4FB77AF2 4FBFEB1C
No OS matches for host (If you know what OS is running on it, see
http://www.insecure.org/cgi-bin/nmap-submit.cgi).
TCP/IP fingerprint:
TSeq(Class=RI%gcd=1%SI=20FF0)
TSeq(Class=RI%gcd=1%SI=10490)
TSeq(Class=RI%gcd=1%SI=16B9B)
T1(Resp=Y%DF=N%W=10C0%ACK=S++%Flags=AS%Ops=ME)
T2(Resp=Y%DF=N%W=C00%ACK=S++%Flags=AR%Ops=)
T3(Resp=Y%DF=N%W=10C0%ACK=S++%Flags=AS%Ops=M)
T4(Resp=Y%DF=N%W=C00%ACK=S++%Flags=AR%Ops=)
T5(Resp=Y%DF=N%W=0%ACK=S++%Flags=AR%Ops=)
T6(Resp=Y%DF=N%W=C00%ACK=S++%Flags=AR%Ops=)
T7(Resp=Y%DF=N%W=C00%ACK=S++%Flags=AR%Ops=)
PU(Resp=N)
Nmap run completed -- 1 IP address (1 host up) scanned in 70 seconds
***
I have identified port 2001 to be a common Trojan port so this has me
concerned and interested. Is there a way to take advantage of TrojanCow
installed by someone else? I have no experience with this particular
trojan, so any input would be much appreciated.
Also, are there any other known uses for this port? Because TrojanCow
is a stupid little Windows manipulator so perhaps this is something
else.
Oliver Petruzel
Systems Security Engineer
Entercept Security Technologies
*Protecting Servers Everywhere!*
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FREE! The World's Best Email Address @email.com
Reserve your name now at http://www.email.com
Received on Mar 06 2001
Intro
