MD5: e7c0e744539ca32b54452411476fe36b
SHA1: e929485421fcb6e833d53b572272cda165f419e2
SHA256: 72268d27bcaa1808efb16381c191f3c18bc040566c4f3a79153221c6538d6252
SSDeep: 3072:NrDDb sO/TlD3KUgsmjFaFwBkM52SuyMWlH5srJVYxl3A0xuaLLAf:R1smjFaFwBpgSXrlHqrXYn33uaq
Size: 204800 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2011-06-25 00:40:31
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).

Payload

Process activity

The Trojan creates the following process(es):

%original file name%.exe:1664

The Trojan injects its code into the following process(es):

svchost.exe:1200

Mutexes

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

File activity

The process %original file name%.exe:1664 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\Microsoft\svchost.exe (1281 bytes)

Registry activity

The process %original file name%.exe:1664 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "07 2A A7 5A D9 D2 BE 3E 0D 86 4E B8 5D D0 4B 1D"

[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"
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

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

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

[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"

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

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

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Application Data\Microsoft]
"svchost.exe" = "swingchat"

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

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

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]
"svchost.exe" = "%Documents and Settings%\%current user%\Application Data\Microsoft\svchost.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"

Dropped PE files

There are no dropped PE files.

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.

VersionInfo

Company Name:
Product Name: swingerschat
Product Version: 1.1.2.0
Legal Copyright: swingchat
Legal Trademarks:
Original Filename: swingchatv1.1.exe
Internal Name: swings
File Version: 1,1,2,0
File Description: swingchat
Comments:
Language: Chinese (Simplified, PRC)

PE Sections

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

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

.idata

.rdata

P.reloc

P.rsrc

kernel32.dll

$*@@@*$@@@$ *@@* $@@($*)@-$*@@$-*@@$*-@@(*$)@-*$@@*-$@@*$-@@-* $@-$ *@* $-@$ *-@$ -*@*- $@($ *)(* $)

oleaut32.dll

EVariantBadIndexError

SQL error or missing database

An internal logic error in SQLite

Operation terminated by sqlite3_interrupt()

Uses OS features not supported on host

2nd parameter to sqlite3_bind out of range

sqlite3_step() has another row ready

sqlite3_step() has finished executing

Unknown SQLite Error Code "

ESQLiteException

TSQLiteDatabase

TSQLiteTable

sqlite3_open

sqlite3_errmsg

sqlite3_free

sqlite3_close

sqlite3_last_insert_rowid

sqlite3_total_changes

sqlite3_errcode

sqlite3_bind_text

sqlite3_bind_int

sqlite3_bind_int64

sqlite3_bind_double

sqlite3_bind_null

sqlite3_bind_blob

sqlite3_prepare_v2

sqlite3_step

sqlite3_reset

sqlite3_finalize

sqlite3_prepare

sqlite3_busy_timeout

sqlite3_libversion

sqlite3_create_collation

sqlite3_bind_parameter_index

sqlite3_changes

sqlite3_column_count

sqlite3_column_name

sqlite3_column_decltype

sqlite3_column_type

sqlite3_column_int64

sqlite3_column_double

sqlite3_column_bytes

sqlite3_column_blob

sqlite3_column_text

Failed to open database "%s" : %s

Failed to open database "%s" : unknown error

Error [%d]: %s.

"%s": %s

Error executing SQL

Could not prepare SQL statement

Error executing SQL statement

SQLite is Busy

udprec

SOFTWARE\Microsoft\Windows\CurrentVersion\Run\

:\autorun.inf

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

\Mozilla Firefox\

nss3.dll

mozcrt19.dll

sqlite3.dll

nspr4.dll

plc4.dll

plds4.dll

nssutil3.dll

softokn3.dll

PK11_GetInternalKeySlot

userenv.dll

\Mozilla\Firefox\

profiles.ini

\signons3.txt

\Mozilla\Firefox\profiles.ini

signons.sqlite

SELECT * FROM moz_logins

encryptedPassword

Urlmon.dll

Shell32.dll

URLDownloadToFileA

ShellExecuteA

Future Windows version (unknown)

Windows

UDPPROG1|

UDPStart|

SOFTWARE\Mozilla\Mozilla Firefox\

WEBDL

SOFTWARE\Microsoft\Windows\CurrentVersion\Run

svchost.exe

user32.dll

GetKeyboardType

advapi32.dll

RegOpenKeyExA

RegCloseKey

RegFlushKey

RegCreateKeyExA

GetCPInfo

MsgWaitForMultipleObjects

wsock32.dll

shell32.dll

5 5$5(5,5054585

>">*>2>:>

: :$:(:,:0:4:8:<:@:`:

SQLite3

KWindows

UrlMon

SQLiteTable3

Cannot open file "%s". %s

Invalid data type for '%s' List capacity out of bounds (%d)

List count out of bounds (%d)

List index out of bounds (%d) Out of memory while expanding memory stream

Failed to get data for '%s'

Failed to set data for '%s'

%s.Seek not implemented$Operation not allowed on sorted list

Thread creation error: %s

Thread Error: %s (%d)

Cannot assign a %s to a %sECheckSynchronize called from thread $%x, which is NOT the main thread%String list does not allow duplicates

Cannot create file "%s". %s

%s (%s, line %d)

Abstract Error?Access violation at address %p in module '%s'. %s of address %p

System Error. Code: %d.

Invalid variant operation%Invalid variant operation (%s%.8x)

%s5Could not convert variant of type (%s) into type (%s)=Overflow while converting variant of type (%s) into type (%s)

Operation not supported

External exception %x

Interface not supported

Invalid pointer operation

Invalid class typecast0Access violation at address %p. %s of address %p

Privileged instruction(Exception %s in module %s at %p.

Application Error1Format '%s' invalid or incompatible with argument

No argument for format '%s'"Variant method calls not supported

!'%s' is not a valid integer value('%s' is not a valid floating point value

I/O error %d

Integer overflow Invalid floating point operation

svchost.exe_1200_rwx_00400000_00027000:

.idata

.rdata

P.reloc

P.rsrc

kernel32.dll

$*@@@*$@@@$ *@@* $@@($*)@-$*@@$-*@@$*-@@(*$)@-*$@@*-$@@*$-@@-* $@-$ *@* $-@$ *-@$ -*@*- $@($ *)(* $)

oleaut32.dll

EVariantBadIndexError

SQL error or missing database

An internal logic error in SQLite

Operation terminated by sqlite3_interrupt()

Uses OS features not supported on host

2nd parameter to sqlite3_bind out of range

sqlite3_step() has another row ready

sqlite3_step() has finished executing

Unknown SQLite Error Code "

ESQLiteException

TSQLiteDatabase

TSQLiteTable

sqlite3_open

sqlite3_errmsg

sqlite3_free

sqlite3_close

sqlite3_last_insert_rowid

sqlite3_total_changes

sqlite3_errcode

sqlite3_bind_text

sqlite3_bind_int

sqlite3_bind_int64

sqlite3_bind_double

sqlite3_bind_null

sqlite3_bind_blob

sqlite3_prepare_v2

sqlite3_step

sqlite3_reset

sqlite3_finalize

sqlite3_prepare

sqlite3_busy_timeout

sqlite3_libversion

sqlite3_create_collation

sqlite3_bind_parameter_index

sqlite3_changes

sqlite3_column_count

sqlite3_column_name

sqlite3_column_decltype

sqlite3_column_type

sqlite3_column_int64

sqlite3_column_double

sqlite3_column_bytes

sqlite3_column_blob

sqlite3_column_text

Failed to open database "%s" : %s

Failed to open database "%s" : unknown error

Error [%d]: %s.

"%s": %s

Error executing SQL

Could not prepare SQL statement

Error executing SQL statement

SQLite is Busy

udprec

SOFTWARE\Microsoft\Windows\CurrentVersion\Run\

:\autorun.inf

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

\Mozilla Firefox\

nss3.dll

mozcrt19.dll

sqlite3.dll

nspr4.dll

plc4.dll

plds4.dll

nssutil3.dll

softokn3.dll

PK11_GetInternalKeySlot

userenv.dll

\Mozilla\Firefox\

profiles.ini

\signons3.txt

\Mozilla\Firefox\profiles.ini

signons.sqlite

SELECT * FROM moz_logins

encryptedPassword

Urlmon.dll

Shell32.dll

URLDownloadToFileA

ShellExecuteA

Future Windows version (unknown)

Windows

UDPPROG1|

UDPStart|

SOFTWARE\Mozilla\Mozilla Firefox\

WEBDL

SOFTWARE\Microsoft\Windows\CurrentVersion\Run

svchost.exe

user32.dll

GetKeyboardType

advapi32.dll

RegOpenKeyExA

RegCloseKey

RegFlushKey

RegCreateKeyExA

GetCPInfo

MsgWaitForMultipleObjects

wsock32.dll

shell32.dll

5 5$5(5,5054585

>">*>2>:>

: :$:(:,:0:4:8:<:@:`:

SQLite3

KWindows

UrlMon

SQLiteTable3

Cannot open file "%s". %s

Invalid data type for '%s' List capacity out of bounds (%d)

List count out of bounds (%d)

List index out of bounds (%d) Out of memory while expanding memory stream

Failed to get data for '%s'

Failed to set data for '%s'

%s.Seek not implemented$Operation not allowed on sorted list

Thread creation error: %s

Thread Error: %s (%d)

Cannot assign a %s to a %sECheckSynchronize called from thread $%x, which is NOT the main thread%String list does not allow duplicates

Cannot create file "%s". %s

%s (%s, line %d)

Abstract Error?Access violation at address %p in module '%s'. %s of address %p

System Error. Code: %d.

Invalid variant operation%Invalid variant operation (%s%.8x)

%s5Could not convert variant of type (%s) into type (%s)=Overflow while converting variant of type (%s) into type (%s)

Operation not supported

External exception %x

Interface not supported

Invalid pointer operation

Invalid class typecast0Access violation at address %p. %s of address %p

Privileged instruction(Exception %s in module %s at %p.

Application Error1Format '%s' invalid or incompatible with argument

No argument for format '%s'"Variant method calls not supported

!'%s' is not a valid integer value('%s' is not a valid floating point value

I/O error %d

Integer overflow Invalid floating point operation

Remove it with Ad-Aware

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

Manual removal*

1. Terminate malicious process(es) (How to End a Process With the Task Manager):
   

   %original file name%.exe:1664
   

2. Delete the original Trojan file.
   
3. Delete or disinfect the following files created/modified by the Trojan:
   

   %Documents and Settings%\%current user%\Application Data\Microsoft\svchost.exe (1281 bytes)

4. Delete the following value(s) in the autorun key (How to Work with System Registry):
   

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "svchost.exe" = "%Documents and Settings%\%current user%\Application Data\Microsoft\svchost.exe"

5. Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
   
6. Reboot the computer.
   

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