TSPY_JOANAP.A

May 17, 2013

Analysis by: Nikko Tamana

ALIASES:

Backdoor:Win32/Joanap.A (Microsoft), Backdoor.Win32.Joanap (Ikarus)

PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

OVERALL RISK RATING:

REPORTED INFECTION:

SYSTEM IMPACT RATING:

INFORMATION EXPOSURE:

Threat Type: Spyware
Destructiveness: No
Encrypted: No
In the wild: Yes

OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It arrives as a component bundled with malware/grayware packages.

It does not have any propagation routine.

It does not have any backdoor routine.

It does not have any downloading capability.

TECHNICAL DETAILS

File Size: 90,112 bytes

File Type: EXE

Memory Resident: Yes

Initial Samples Received Date: 10 May 2013

Payload: Steals information, Drops files

Arrival Details

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It arrives as a component bundled with malware/grayware packages.

Propagation

This spyware does not have any propagation routine.

Backdoor Routine

This spyware does not have any backdoor routine.

Download Routine

This spyware does not have any downloading capability.

Information Theft

This spyware gathers the following data:

Password hashes from NT LanMan

Stolen Information

This spyware sends the data it gathers to the following email addresses via SMTP:

{BLOCKED}epy0611@gmail.com

Other Details

This spyware requires the following additional components to properly run:

%System%\perfw06.dat
%System%\mssscardprv.ax
%System%\KB25879.dat

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

It drops the following file(s)/component(s):

%User Temp%\msvcrt.bat - Used to delete itself

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)

NOTES:

It tries to log in the Administrator account by brute-forcing using the following passwords:

*1234
00000
000000
00000000
11111
111111
11111111
121212
123123
123321
12345
123456
1234567
12345678
123456789
1234567890
1234qwer
123abc
123asd
123qwe
168168
1q2w3e
1q2w3e4r
1qaz2wsx
1qazxsw2
520520
54321
654321
666666
88888
888888
8888888
88888888
Admin
KKKKKKK
Login
abc123
abcd1234
admin
admin!@#
admin123
administrador
administrator
asdf!23
asdf123
asdfg
asdfgh
ashley
backup
backupexec
bailey
baseball
blank
changeme
cisco
clustadm
cluster
compaq
computer
control
cookie123
database
db1234
dbpassword
default
domino
dragon
enable
exchadm
exchange
foobar
football
gateway
guest
harley
iloveyou
internet
letmein
login
lotus
manager
master
michael
money
monkey
notes
office
oracle
owner
passw0rd
passwd
password
password!
password1
print
pw123
q1w2e3
q1w2e3r4
q1w2e3r4t5
q1w2e3r4t5y6
qazwsx
qazwsxedc
qazxsw
qwert
qwerty
replicate
seagate
secret
server
shadow
sqlexec
sunshine
super
superman
sybase
temp!
temp123
test!
test!23
test1
test123
tivoli
trustno1
veritas
virus
win2000
win2003
win2008
winxp
zxcv123asdf

If it is successful in logging in, it will set the %System Root% as a network share named adnim. It also creates a service named HelpEvent and RPCEvent.

It sends email by connecting to gmail-smtp-in.l.google.com, which is the legitimate SMTP site of Google.

It does not have rootkit capabilities.

It does not exploit any vulnerability.

SOLUTION

Minimum Scan Engine: 9.300

FIRST VSAPI PATTERN FILE: 9.918.04

FIRST VSAPI PATTERN DATE: 14 May 2013

VSAPI OPR PATTERN File: 9.919.00

VSAPI OPR PATTERN Date: 15 May 2013

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product and note files detected as TSPY_JOANAP.A

Step 3

Restart in Safe Mode

[ Learn More ]

Step 4

Search and delete the files detected as TSPY_JOANAP.A

*Note: Some component files may be hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files and folders in the search result.

To stop the malware/grayware from running when certain files are opened:

For Windows 2000, Windows XP, and Windows Server 2003:

Right-click Start then click Search....
In the Named input box, type the name of the file that was detected earlier.
In the Look In drop-down list, select My Computer then press Enter.
Once located, select the file then press SHIFT+DELETE to delete it.

For Windows Vista and Windows 7:

Click Start>Computer.
In the Search Computer input box, type the name of the file detected earlier, and press Enter.
Once located, select the file then press SHIFT+DELETE to delete it.
*Note: Read the following Microsoft page if these steps do not work on Windows 7.

Step 5

Search and delete this file

[ Learn More ]

There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.

%User Temp%\msvcrt.bat

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_JOANAP.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.

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