Virus:Worm/Pinom.C
Date discovered:20/05/2005
Type:Worm
In the wild:No
Reported Infections:Low
Distribution Potential:Medium
Damage Potential:Medium
Static file:Yes
File size:21.504 Bytes
MD5 checksum:a2760d29e825e74df4dadcab6d40e0b2
VDF version:6.30.00.190

 General Method of propagation:
   • Local network


Aliases:
   •  Symantec: W32.Cissi.A@mm
   •  Mcafee: W32/Pinom.worm!backdoor
   •  Kaspersky: Worm.Win32.Pinom.c
   •  TrendMicro: WORM_CISSI.B
   •  Grisoft: Worm/Pinom.C
   •  VirusBuster: Worm.Cissy.B
   •  Bitdefender: Win32.Worm.Imbiat.A


Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Registry modification
   • Third party control

 Files It copies itself to the following location:
   • %SYSDIR%\penis.exe



A section is added to a file.
– To: %WINDIR%\system.ini With the following contents:
   • shell=Explorer.exe penis.exe

This makes the mentioned file run after reboot.

 Registry The following registry key is changed:

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   Old value:
   • "Shell"="Explorer.exe"
   New value:
   • "Shell"="Explorer.exe penis.exe"

 Network Infection In order to ensure its propagation the malware attemps to connect to other machines as described below.

It drops a copy of itself to the following network share:
   • %all shared folders%


It uses the following login information in order to gain access to the remote machine:

– The following list of usernames:
   • Guest
   • Administrator
   • Owner
   • Root

– The following list of passwords:
   • 1234; password; 6969; harley; 123456; golf; pussy; mustang; 1111;
      shadow; 1313; fish; 5150; 7777; qwerty; baseball; 2112; letmein;
      12345678; 12345; ccc; admin; Admin; Password; 123; 1234567; 123456789;
      654321; 54321; 111; 000000; abc; 11111111; 88888888; pass; passwd;
      database; abcd; abc123; sybase; 123qwe; server; computer; Internet;
      super; 123asd; ihavenopass; godblessyou; enable; 2002; 2003; 2600;
      alpha; 110; 111111; 121212; 123123; 1234qwer; 123abc; 007; aaa;
      patrick; pat; administrator; root; sex; god; foobar; secret; test;
      test123; temp; temp123; win; asdf; oracle'pwd; qwer; yxcv; zxcv; home;
      xxx; owner; login; Login; pw123; love; mypc; mypc123; admin123;
      mypass; mypass123; 901100



IP address generation:
It creates random IP addresses and tries to establish a connection with them.


Remote execution:
–It attempts to schedule a remote execution of the malware, on the newly infected machine. Therefore it uses the NetScheduleJobAdd function.

 IRC To deliver system information and to provide remote control it connects to the following IRC Server:

Server: uk.undernet.org
Port: 6667
Channel: #peniz
Nickname: %random character string%
Password: public


– Furthermore it has the ability to perform actions such as:
    • Launch DDoS SYN flood
    • Download file
    • Execute file
    • Leave IRC channel
    • Perform DDoS attack
    • Terminate malware
    • Updates itself
    • Visit a website

 Miscellaneous Mutex:
It creates the following Mutex:
   • STFUKTHX

 File details Programming language:
 The malware program was written in Delphi.


Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with the following runtime packer:
   • UPX

Description inserted by Iulia Diaconescu on Monday, March 13, 2006
Description updated by Iulia Diaconescu on Monday, March 13, 2006

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