A new variant of email worm Kipis was found on 24th of December 2004.
The worm spreads in emails that have a subject "Hello", "Happy New Year",
or "Ass". This variant also does a DDoS attack against www.kaspersky.ru.
When run the worm creates a mutex named "KiPiSx018-AxSE-DDSxKAV" to avoid
running more than once simultaneously.
The worm copies itself as:
where %WinDir% is Windows folder, for example
'C:\Windows\' on a default installation of Windows XP.
In effect, running "regedit" runs a copy of the worm
instead of regedit.exe.
It also creates a directory
and copies itself in that directory as "svchost.exe". This
path is added to system.ini file using the Windows API call
WritePrivateProfileStringA from the Kernel32.dll.
The entry will look like this:
As win.ini is not supported by Windows NT, 2000 and XP, on these
operating system the changes will be added to the Registry.
As as result Windows will start the worm on every time it boots.
The worm also creates a file
where %WinSysDir% is Windows System folder, for example
'C:\Windows\System32' on a default installation of Windows XP.
The file Jpg.bmp contains the following string
BMD -:+:- zzzzzzzzzzz
Then the worm tries to open this file with mspaint.exe as a decoy.
This file crashes mspaint.exe.
Kipis.B tries to locate the e-mail addresses from the Windows
address book file. Additionally, it collects addresses from files
with certain extensions on all hard disks and RAM drives from C: to Z.
Files with the following extensions will be checked:
The worm has its own SMTP engine which it uses to send infected
emails. The messages sent by the worm will have one of the
Happy New Year
The worm uses one the following body texts in the message:
Hello! baby :-)
Kiss me Ass...
It can also use the following faked error message in the body:
Server cannot send message.
On all questions address in a support service
The worm attaches itself to an infected message using one of the
kiss my ass.scr
The worm spreads itself in P2P networks. When it locates a shared folder,
it copies itself there with one of the following names:
Nude Britney Spears.scr
Virtual Girl 2.01.com
KAV Pro 5.xx keygen.com
DrWeb 4.32 keygen.com
WinXP Sp2 key.com
Kipis.B creates a thread that terminates security related software.
The worm also has a backdoor listening on port 1029. With this backdoor,
additional programs can be uploaded and executed.
Denial of service attack
Kipis.B creates a thread that checks the current time with GetLocalTime
Win32 call. If the day of the month is below 14th, the worm attempts a
DDoS attack against www.kaspersky.ru. The DDos is performed by creating
a massive amount of threads that send a simple HTTP query to web server.
The attack will first begin on January 1st 2005 and will cease on
F-Secure Anti-Virus detects Kipis.B worm with the following
Jarkko Turkulainen, December 27th, 2004;