Trojan.Win32.Agent.icgh (Kaspersky), Gen:Heur.Minggy.1 (B) (Emsisoft), Gen:Heur.Minggy.1 (AdAware), Trojan.Win32.Swrort.4.FD, TrojanSwrort.YR (Lavasoft MAS)Behaviour: Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 006294fbf9254de4efcd47153d07b3b2
SHA1: 58f0a7b82cc3b3112acc2ada6f47fd152cb0973f
SHA256: 9dff6e731cdc7d5b52e6f9144e64574157f046f9ecca4cbc8aed2af186f5092e
SSDeep: 12288:71/aGLDCMNpNAkoSzZWD8ayX2MQCw7D0IeAmcin1Dvh8kYs4LjqXXbZV6K7:71/aGLDCM4D8ayGMceAZi1Dp84gj0LZ9
Size: 728075 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2014-02-27 08:41:59
Analyzed on: WindowsXP SP3 32-bit
Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
cnhbde.exe:1888
%original file name%.exe:580
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 cnhbde.exe:1888 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
C:\AUTOEXEC.BAT .exe (1425666 bytes)
C:\MSDOS.SYS .exe (1425666 bytes)
C:\IO.SYS .exe (1425666 bytes)
C:\%original file name%.exe .exe (1425666 bytes)
C:\boot.ini .exe (1425666 bytes)
%Documents and Settings% .exe (1425666 bytes)
C:\RECYCLER .exe (1425666 bytes)
C:\ntldr .exe (1425666 bytes)
C:\original .exe (1425666 bytes)
C:\totalcmd .exe (1425666 bytes)
C:\NTDETECT.COM .exe (1425666 bytes)
C:\System Volume Information .exe (1425666 bytes)
C:\CONFIG.SYS .exe (1425666 bytes)
C:\marker .exe (1425666 bytes)
%Program Files% .exe (1425666 bytes)
%WinDir% .exe (1425666 bytes)
C:\pagefile.sys .exe (1425666 bytes)
The Trojan deletes the following file(s):
C:\Mirax (0 bytes)
C:\Mirat (0 bytes)
C:\Mirau (0 bytes)
C:\Miraw (0 bytes)
C:\Miraq (0 bytes)
C:\Miral (0 bytes)
C:\Miram (0 bytes)
C:\Mirao (0 bytes)
C:\Miraj (0 bytes)
C:\Mirad (0 bytes)
C:\Miraa (0 bytes)
C:\Mirab (0 bytes)
C:\Mirac (0 bytes)
The process %original file name%.exe:580 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\All Users\Application Data\cnhbde.exe (914498 bytes)
%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (512410 bytes)
Registry activity
The process cnhbde.exe:1888 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\cnhbde.exe"
The process %original file name%.exe:580 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AD 00 0B 1A 91 93 68 E1 F5 5E 3A 99 0E A0 42 7D"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
Dropped PE files
MD5 | File path |
---|---|
58c99566aa72ad082a5770f7fc4e31f4 | c:\%original file name%.exe .exe |
d51aeec51ed775f9957fe6a8770e8599 | c:\AUTOEXEC.BAT .exe |
cca61b90dfcf8be22875b8f12bd7c8f9 | c:\CONFIG.SYS .exe |
fe09b072ac02ef9d69cd08768fd435b7 | c:\Documents and Settings .exe |
3835a08a15685057f0c784aa5e556038 | c:\Documents and Settings\All Users\Application Data\Saaaalamm\Mira.h |
fa94ebf4fc81825d06fc6571dd7600a2 | c:\Documents and Settings\All Users\Application Data\cnhbde.exe |
bd51e94eeff9b8f8a92e0e5c9107df5e | c:\IO.SYS .exe |
1480a40e96b4cd53bfdcd3c37dba4b3e | c:\MSDOS.SYS .exe |
6747ef84ce456708ea453c3e1a8e11c4 | c:\NTDETECT.COM .exe |
1147ba390c682e0b1ebd05fec1c3ddd4 | c:\Perl .exe |
05e8cab4702ecabbb6c8e62b1282dbe3 | c:\Program Files .exe |
ce863e5eb8835e0bb4769fef31c2de9f | c:\RECYCLER .exe |
b0a6d7c66df82389986861167bf790b6 | c:\System Volume Information .exe |
bbb27d3186a333a5112cb7ede4427808 | c:\WINDOWS .exe |
212eadeefeeb1a4ead1a4bd88324b6b2 | c:\boot.ini .exe |
e0bf0c1a36356cde51482eeb7e711b8a | c:\marker .exe |
4158633c035c3d35aabdae2b80a78c44 | c:\ntldr .exe |
00fc7d1161117c105790bcb3716bfa2e | c:\original .exe |
f060ea68eeb8b2c05711d2148b6400e1 | c:\pagefile.sys .exe |
3a9080019676e85971015bf5b3ff98fc | c:\totalcmd .exe |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
No anomalies have been detected.
Propagation
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):
cnhbde.exe:1888
%original file name%.exe:580 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
C:\AUTOEXEC.BAT .exe (1425666 bytes)
C:\MSDOS.SYS .exe (1425666 bytes)
C:\IO.SYS .exe (1425666 bytes)
C:\%original file name%.exe .exe (1425666 bytes)
C:\boot.ini .exe (1425666 bytes)
%Documents and Settings% .exe (1425666 bytes)
C:\RECYCLER .exe (1425666 bytes)
C:\ntldr .exe (1425666 bytes)
C:\original .exe (1425666 bytes)
C:\totalcmd .exe (1425666 bytes)
C:\NTDETECT.COM .exe (1425666 bytes)
C:\System Volume Information .exe (1425666 bytes)
C:\CONFIG.SYS .exe (1425666 bytes)
C:\marker .exe (1425666 bytes)
%Program Files% .exe (1425666 bytes)
%WinDir% .exe (1425666 bytes)
C:\pagefile.sys .exe (1425666 bytes)
%Documents and Settings%\All Users\Application Data\cnhbde.exe (914498 bytes)
%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (512410 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\cnhbde.exe"
Static Analysis
VersionInfo
No information is available.
No information is available.
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 4096 | 245368 | 245760 | 4.21465 | 8b164ac8ef3742f37830dc1842275667 |
.data | 249856 | 608 | 1024 | 0.488703 | 6fda88cf7188a8245a53dfde927250fd |
.rdata | 253952 | 9384 | 9728 | 3.47165 | dbe852009dbd077a9976cb0ecfb9aadf |
.bss | 266240 | 18576 | 0 | 0 | d41d8cd98f00b204e9800998ecf8427e |
.idata | 286720 | 2212 | 2560 | 2.97703 | 5e5242c565219f3bd33a6568632559dc |
.rsrc | 290816 | 26552 | 26624 | 4.83121 | 64a46b8c6de6fa6acc95992ff1740526 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
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
cnhbde.exe_1888:
.text
.text
`.data
`.data
.rdata
.rdata
@.bss
@.bss
.idata
.idata
%Documents and Settings%\All Users\Application Data\cnhbde.exe
%Documents and Settings%\All Users\Application Data\cnhbde.exe
Software\Microsoft\Windows\CurrentVersion\Run
Software\Microsoft\Windows\CurrentVersion\Run
Windows
Windows
Operating System
Operating System
%H:%M:%S
%H:%M:%S
%m/%d/%y
%m/%d/%y
-0123456789
-0123456789
%s:%u: failed assertion `%s'
%s:%u: failed assertion `%s'
RegCloseKey
RegCloseKey
RegOpenKeyA
RegOpenKeyA
ADVAPI32.DLL
ADVAPI32.DLL
KERNEL32.dll
KERNEL32.dll
msvcrt.dll
msvcrt.dll
SHELL32.DLL
SHELL32.DLL