Trojan.NSIS.StartPage_a1729f723a

by malwarelabrobot on March 14th, 2016 in Malware Descriptions.

Trojan.NSIS.StartPage.FD, mzpefinder_pcap_file.YR (Lavasoft MAS)
Behaviour: Trojan


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

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Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: a1729f723a9d79381fec10743b0d28a9
SHA1: f70ccb474cb9256199ffbbae49198f15f9d3eac4
SHA256: e3f6ba336d5bab4c3a4ed7e46f2131833fc18f04689da2fa740dcddf92a31d1c
SSDeep: 1536:iCaIoX1oYOcbTMV88TXJLEu42EsCGu3SzRp:iCaZ2Yrb0VTXJYWEsCGuiH
Size: 75696 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2013-12-25 07:01:29
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

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

InstGameInfoHelperMSN.exe:1928

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

MSNGamesSetup.exe:668
%original file name%.exe:404

Mutexes

The following mutexes were created/opened:

ShimCacheMutex
Name

File activity

The process MSNGamesSetup.exe:668 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\nsh4.tmp\nsExec.dll (6 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\ns5.tmp (6 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\version.txt (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\modern-header.bmp (26 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\ftdownload.dat (512 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\System.dll (11 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\InstGameInfoHelperMSN.exe (10092 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\ns5.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsr3.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp (0 bytes)

The process InstGameInfoHelperMSN.exe:1928 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\nsh4.tmp\tn_feat.jpg (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\8NUPBOC8\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\DUFX0QM9\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3WMRFKWV\tn_feat[1].jpg (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3WMRFKWV\6901722585967888125[1].txt (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\tn_feat.bmp (22 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IBX1SL4D\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3WMRFKWV\gm-config[1].xml (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\gametitle.txt (14 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3WMRFKWV\desktop.ini (67 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3WMRFKWV\6901722585967888125[1].txt (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3WMRFKWV\gm-config[1].xml (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\~DF765D.tmp (0 bytes)

The process %original file name%.exe:404 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\nsd2.tmp\nsisdl.dll (14 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsd2.tmp\MSNGamesSetup.exe (275554 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsd2.tmp\System.dll (11 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsd2.tmp\ftdownload.dat (512 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nso1.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsd2.tmp (0 bytes)

Registry activity

The process MSNGamesSetup.exe:668 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "6C 71 C8 4A BD 15 29 36 9F DD 5C D3 06 74 10 E9"

[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"

[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"

The process InstGameInfoHelperMSN.exe:1928 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"

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

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

"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"

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

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

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 1A 00 00 00 01 00 00 00 00 00 00 00"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "67 99 BA A8 61 4B AF 42 16 17 A8 82 63 01 BD A1"

[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\Internet Settings]
"MigrateProxy" = "1"

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

[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"

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"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

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"

The Trojan deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

The process %original file name%.exe:404 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "EB 3A 41 20 6E C9 A4 84 25 02 C9 FA 15 D3 A8 CB"

[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"

[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
2963e74c4e6fc1424a23465ca8c141be c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsd2.tmp\MSNGamesSetup.exe
960a5c48e25cf2bca332e74e11d825c9 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsd2.tmp\System.dll
a5a4cee2eb89d2687c05ef74299f0dba c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsd2.tmp\nsisdl.dll
0025cd88501fa44e826bc9ed4bdef2fb c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsh4.tmp\InstGameInfoHelperMSN.exe
c17103ae9072a06da581dec998343fc1 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsh4.tmp\System.dll
acc2b699edfea5bf5aae45aba3a41e96 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsh4.tmp\nsExec.dll

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 23146 23552 4.44842 8781c451557a4626018483faabe438d0
.rdata 28672 4558 4608 3.62903 640f709ec19b4ed0455a4c64e5934d5e
.data 36864 108472 1024 3.37017 c9a433d4fe67308d6a5942cfb667cbe7
.ndata 147456 32768 0 0 d41d8cd98f00b204e9800998ecf8427e
.rsrc 180224 17000 17408 2.69684 654ac01907b168453e2702f516512acd

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 126
3d5af80433c098ec5a5279653d721ee6
ca018ed1395a5f4b3187d17d773f64e3
d016004fdd61a8dc31802e98e78f486d
fdd888ba00e902f5ca8609f5d5c21fad
962ffd960be802a2754b5321f3c2b31e
960fe821ac46581824470e46010f0cf9
2f80439bd3eadd6936faa64cb2f0fca6
b30f1a1383e1bef2052244fd45a83aa3
f9c1fca77b6df26cfb5ce8069ef9ebfa
da37947b17a4733c59690eb33576d1cf
226c49801bfd2a952e9dfc31eec2b1c0
3a1e99337440e3c4eee15d62ec470abf
bd3a8eb593f97cb393055f7ca5eb1c7c
6e0ad2cce681ad41e316a21d0e20ceba
b0b0a8c4d9722cca4d87197830a5e480
8de8b8a3ba76d0f2745b188380faa63e
6c42ece50107993a7613007752e54eff
aa8d9982fe88a7c25c18c7c20f1f762e
648812305283df15451d4e774c0c301c
d98cb7418587bf9dca413fda21c2a3f2
232d714169a6042cb34a51254bdc17a3
30834450db655ef0280dd35be11e5a7e
8e51a107ea4c6daf1cdf43ed6929e78a
50351979d2c8b93fb1c0c295b3f28977
edb82428dfd5858c9a6a052deb4609f0

URLs

URL IP
hxxp://stamp-vpc-aws-iwin-com-1981998893.us-east-1.elb.amazonaws.com/msngames/MSNGamesSetup.exe
hxxp://msn-iwin-com-121665791.us-east-1.elb.amazonaws.com/gm-config
hxxp://msn-iwin-com-121665791.us-east-1.elb.amazonaws.com/arcade/rawinfo/2459991736120122674/6901722585967888125
hxxp://cdn-vpc-aws-iwin-com-1060965153.us-east-1.elb.amazonaws.com/images/product/2459991736120122674/tn_feat.jpg
hxxp://gm-msn.iwin.com/gm-config 54.88.224.112
hxxp://gm-msn.iwin.com/arcade/rawinfo/2459991736120122674/6901722585967888125 54.88.224.112
hxxp://dl.iwin.com/msngames/MSNGamesSetup.exe 52.6.129.32
hxxp://img.iwin.com/images/product/2459991736120122674/tn_feat.jpg 52.87.32.237


IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

ET MALWARE iwin.com Games/Spyware User-Agent (iWin GameInfo Installer Helper)

Traffic

GET /images/product/2459991736120122674/tn_feat.jpg HTTP/1.1
User-Agent: iWin GameInfo Installer Helper
Host: img.iwin.com


HTTP/1.1 200 OK
Accept-Ranges: bytes
Age: 15505
Cache-Control: max-age=86400, s-maxage=2592000
Content-Type: image/jpeg
Date: Sun, 13 Mar 2016 00:10:15 GMT
ETag: "2623100cb36fbc1cda1dea0646c8a576"
Last-Modified: Thu, 01 May 2014 17:05:59 GMT
Server: AmazonS3
Via: 1.1 img.iwin.com
Via: 1.1 varnish
x-amz-id-2: sk9yRw3rjj6 ozUgumlQXFAntM4poilsNA04DSFZSq3fEwyl1m94ASXuURUx68e8Wlj3csnF qw=
x-amz-request-id: C9C08EFAE21B65B8
X-Varnish: 1710686642 1710503619
Content-Length: 1977
Connection: keep-alive
......JFIF.....d.d......Ducky.......<......Adobe.d.................
......................................................................
..........................................................(.(.........
......................................................................
.......!.1".A.Qa.2.q..BR.....................!..1AQ.a...."2q..BRr.#...
....3C............?.`|...vi@v}.&..4fX.Ely..9.#*......6V;..>n......x
B..........G..W!..ayo.u`c..M1..1.9.9v......m9:...>.x..A..6}-.DT~W..
S.J5...>Vj..Y.....z.z..h.9...!. .(.H........E...dGs.^.Df.6I1..b....
 ..=3..W..hs^...\U5:@.L....O.o................,/..Y`,p.<........{y`
..'.......a;.aj9........tL.......B..f..z.H..0a.2.X..{.v.};.OI....?...c
9.......-..c2e....rl......!s..].1.6hi.$..EC1.]x. .\.g).....t.....c.0d{
x..



GET /gm-config HTTP/1.1
User-Agent: iWin GameInfo Installer Helper
Host: gm-msn.iwin.com


HTTP/1.1 200 OK
Accept-Ranges: bytes
Age: 0
Cache-Control: max-age=7200
Content-Type: application/xml;charset=utf-8
Date: Sun, 13 Mar 2016 00:10:14 GMT
Last-Modified: Sun, 17 Aug 292278994 07:12:55 GMT
P3P: CP="NOI CURo ADMo DEVo TAIo OUR NOR IND COM NAV"
Server: nginx/1.1.19
Vary: iWin-App
Via: 1.1 varnish
X-Varnish: 1074461404
Content-Length: 4699
Connection: keep-alive
<?xml version="1.0" encoding="utf-8"?><gm-url-config xmlns="h
ttp://VVV.iwin.com/schemas/catalog" xmlns:xsi="hXXp://VVV.w3.org/2001/
XMLSchema-instance"><site-host>msn.iwin.com</site-host>
<gm-host>gm-msn.iwin.com</gm-host><url-signin>https:
//gm-msn.iwin.com/Login.do</url-signin><url-about-icoins>h
ttp://gm-msn.iwin.com/membership</url-about-icoins><url-my-ac
count>hXXps://gm-msn.iwin.com/account/icoins</url-my-account>
<url-signout>hXXps://gm-msn.iwin.com/Logout.do</url-signout&g
t;<url-search>hXXp://gm-msn.iwin.com/search?q=</url-search>
;<url-part-rawInfo>/arcade/rawinfo/</url-part-rawInfo><
url-update-arcade>hXXp://gm-msn.iwin.com/dgu?game=ARCD&ver=<
/url-update-arcade><url-update-game>hXXp://gm-msn.iwin.com/dg
u?game=</url-update-game><url-ws-services-slog>hXXp://ws-m
sn.iwin.com/services/slog?</url-ws-services-slog><url-ws-serv
ices-dlog>hXXp://ws-msn.iwin.com/services/dlog?act=</url-ws-serv
ices-dlog><url-ws-services-ulog>hXXp://ws-msn.iwin.com/servic
es/ulog?lid=</url-ws-services-ulog><url-ws-icoins>hXXp://g
m-msn.iwin.com/account/icoins-safe.xml;jsessionid=%s</url-ws-icoins
><url-part-more-game>/calendar/games/new</url-part-more-ga
me><url-part-top-game>hXXp://gm-msn.iwin.com/arcade/home</
url-part-top-game><url-part-ad1>/arcade/panel/bottom</url-
part-ad1><url-part-ad2>/arcade/panel/right</url-part-a
<<< skipped >>>

GET /arcade/rawinfo/2459991736120122674/6901722585967888125 HTTP/1.1


User-Agent: iWin GameInfo Installer Helper
Host: gm-msn.iwin.com


HTTP/1.1 200 OK
Accept-Ranges: bytes
Age: 0
Cache-Control: no-cache, private, max-age=0, s-max-age=0, must-revalidate
Content-Type: text/plain;charset=utf-8
Date: Sun, 13 Mar 2016 00:10:14 GMT
P3P: CP="NOI CURo ADMo DEVo TAIo OUR NOR IND COM NAV"
Server: nginx/1.1.19
Vary: MSN-App
Via: 1.1 varnish
X-Varnish: 415400501
Content-Length: 1026
Connection: keep-alive
gameid|2459991736120122674|skuid|6901722585967888125|title|Zuma's Reve
nge|tryLink|hXXp://download.iwincdn.com/gg/pf/iwin/2459991736120122674
/acd_60m_pogoiwin/iwin/ZumasRevengeSetup.exe|desc|Are you ready for Zu
ma's Revenge? It's the ribbeting sequel to the worlds #1 ball-blasting
 action game! An irresistible force has taken our fearless frog to an 
island where the puzzle-action of Zuma has evolved in amazing ways - b
ut evil spirits and tenacious tiki bosses rule the land! Survive the i
re of the island by firing stone spheres to destroy the deadly stream 
of balls. Conquer over 60 levels by staying sharp and avoiding hidden 
traps. Slide and hop for smarter shots; hit targets for exotic bonuses
; detonate new power-up balls; battle six imposing tiki bosses and gui
de your agile amphibian to victory in four all-new game modes! Will yo
u succumb to the perilous pitfalls, or can you tame the jungle in Zuma
's Revenge, an exciting ballblasting challenge?|activation_code||pid||
email||price|999|trial_time|60|allaccess|falseHTTP/1.1 200 OK..Accept-
Ranges: bytes..Age: 0..Cache-Control: no-cache, private, max-age=0, s-
max-age=0, must-revalidate..Content-Type: text/plain;charset=utf-8..Da
te: Sun, 13 Mar 2016 00:10:14 GMT..P3P: CP="NOI CURo ADMo DEVo TAIo OU
R NOR IND COM NAV"..Server: nginx/1.1.19..Vary: MSN-App..Via: 1.1 varn
ish..X-Varnish: 415400501..Content-Length: 1026..Connection: keep-aliv
e..gameid|2459991736120122674|skuid|6901722585967888125|title|Zuma's R
evenge|tryLink|hXXp://download.iwincdn.com/gg/pf/iwin/245999173612
<<< skipped >>>


GET /msngames/MSNGamesSetup.exe HTTP/1.0
Host: dl.iwin.com
User-Agent: NSISDL/1.2 (Mozilla)
Accept: */*


HTTP/1.1 200 OK
Accept-Ranges: bytes
Cache-Control: max-age=14400
Content-Type: application/x-msdos-program
Date: Sun, 13 Mar 2016 00:10:02 GMT
Expires: Sun, 13 Mar 2016 04:10:02 GMT
Last-Modified: Tue, 16 Feb 2016 08:50:08 GMT
Server: Apache/2.2.22 (Ubuntu) mod_perl/2.0.5 Perl/v5.14.2
Content-Length: 3556392
Connection: Close
MZ......................@.............................................
..!..L.!This program cannot be run in DOS mode....$.......1..:u..iu..i
u..i...iw..iu..i...i...id..i!..i...i...it..iRichu..i..................
......PE..L......K.................Z...........0.......p....@.........
.................P........6......................................s....
.......Y..........8.6..0..............................................
.............p...............................text....X.......Z........
.......... ..`.rdata.......p.......^..............@[email protected].......
[email protected][email protected].
...Y.......Z...t..............@..@....................................
......................................................................
......................................................................
......................................................................
......................................................................
............................................U....\.}..t .}.F.E.u..H...
..>[email protected].>[email protected]
...Pr@..}[email protected]... M.......M....3.....FQ.....NU..
M..........VT..U.....FP..E...............E.P.M...Hp@..E...E.P.E.P.u...
[email protected]}[email protected].}.j.W.E......E.......Pp@.
[email protected]@.W...E..E.h [email protected]...\r
@._^3.[.....L$...>B...Si.....VW.T.....tO.q.3.;5.>B.sB..i......D.
......t.G.....t...O..t .....u...3....3...F.....;5.>B.r._^[...U.
<<< skipped >>>

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

%original file name%.exe_404:

.text
`.rdata
@.data
.ndata
.rsrc
uDSSh
.DEFAULT\Control Panel\International
Software\Microsoft\Windows\CurrentVersion
GetWindowsDirectoryA
KERNEL32.dll
ExitWindowsEx
USER32.dll
GDI32.dll
SHFileOperationA
ShellExecuteA
SHELL32.dll
RegEnumKeyA
RegCreateKeyExA
RegCloseKey
RegDeleteKeyA
RegOpenKeyExA
ADVAPI32.dll
COMCTL32.dll
ole32.dll
VERSION.dll
verifying installer: %d%%
hXXp://nsis.sf.net/NSIS_Error
... %d%%
~nsu.tmp
%u.%u%s%s
RegDeleteKeyExA
%s=%s
*?|<>/":
C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsd2.tmp\MSNGamesSetup.exe
C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsd2.tmp\nsisdl.dll
E~1\"%CurrentUserName%"\LOCALS~1\Temp\nsd2.tmp
E~1\"%CurrentUserName%"\LOCALS~1\Temp\nsd2.tmp\nsisdl.dll
.%U~O<2y
.reloc
WSOCK32.dll
NSISdl.dll
invalid URL
Host: %s
GET %s HTTP/1.0
User-Agent: NSISDL/1.2 (Mozilla)
http=
Software\Microsoft\Windows\CurrentVersion\Internet Settings
Unable to open %s
%skB (%d%%) of %skB at %u.ukB/s
(%u hours remaining)
(%u minutes remaining)
(%u seconds remaining)
Downloading %s
Execute: C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsd2.tmp\MSNGamesSetup.exe
C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsd2.tmp
MSNGamesSetup.exe
MSNGAM~1.EXE
1\"%CurrentUserName%"\LOCALS~1\Temp\nsd2.tmp\MSNGamesSetup.exe
CUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsd2.tmp
c:\%original file name%.exe
%original file name%.exe
CUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nso1.tmp
C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"><assemblyIdentity version="1.0.0.0" processorArchitecture="*" name="Nullsoft.NSIS.exehead" type="win32"/><description>Nullsoft Install System v3.0a2</description><trustInfo xmlns="urn:schemas-microsoft-com:asm.v3"><security><requestedPrivileges><requestedExecutionLevel level="requireAdministrator" uiAccess="false"/></requestedPrivileges></security></trustInfo><compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1"><application><supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/><supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/><supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/></application></compatibility></assembly>

%original file name%.exe_404_rwx_10004000_00001000:

callback%d

MSNGamesSetup.exe_668:

.text
`.rdata
@.data
.ndata
.rsrc
uDSSh
.DEFAULT\Control Panel\International
Software\Microsoft\Windows\CurrentVersion
GetWindowsDirectoryA
KERNEL32.dll
ExitWindowsEx
USER32.dll
GDI32.dll
SHFileOperationA
ShellExecuteA
SHELL32.dll
RegEnumKeyA
RegCreateKeyExA
RegCloseKey
RegDeleteKeyA
RegOpenKeyExA
ADVAPI32.dll
COMCTL32.dll
ole32.dll
VERSION.dll
verifying installer: %d%%
hXXp://nsis.sf.net/NSIS_Error
... %d%%
~nsu.tmp
%u.%u%s%s
RegDeleteKeyExA
%s=%s
*?|<>/":
ME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsh4.tmp\tn_feat.bmp
r.bmp
.msn.com.
:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsh4.tmp\version.txt
C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsh4.tmp
sh4.tmp\ftdownload.dat
C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsh4.tmp\modern-header.bmp
=yt.gN!(
Z%S,4
A/%sW
ftdownload.dat
FTDOWN~1.DAT
OCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsh4.tmp
C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsd2.tmp\MSNGamesSetup.exe
%Program Files%\MSN Games
C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsd2.tmp
MSNGamesSetup.exe
CUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsr3.tmp
C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\
MSN Games Manager powered by iWin is required to launch and play Zuma's Revenge and other games from games.msn.com.
1560937422
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"><assemblyIdentity version="1.0.0.0" processorArchitecture="X86" name="Nullsoft.NSIS.exehead" type="win32"/><description>Nullsoft Install System v2.46</description><dependency><dependentAssembly><assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="X86" publicKeyToken="6595b64144ccf1df" language="*" /></dependentAssembly></dependency><trustInfo xmlns="urn:schemas-microsoft-com:asm.v3"><security><requestedPrivileges><requestedExecutionLevel level="requireAdministrator" uiAccess="false"/></requestedPrivileges></security></trustInfo><compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1"><application><supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/><supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/></application></compatibility></assembly>

MSNGamesSetup.exe_668_rwx_10004000_00001000:

callback%d


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):

    InstGameInfoHelperMSN.exe:1928

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

    %Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\nsExec.dll (6 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\ns5.tmp (6 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\version.txt (4 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\modern-header.bmp (26 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\ftdownload.dat (512 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\System.dll (11 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\InstGameInfoHelperMSN.exe (10092 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\tn_feat.jpg (1 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\8NUPBOC8\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\DUFX0QM9\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3WMRFKWV\tn_feat[1].jpg (1 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3WMRFKWV\6901722585967888125[1].txt (1 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\tn_feat.bmp (22 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IBX1SL4D\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3WMRFKWV\gm-config[1].xml (4 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsh4.tmp\gametitle.txt (14 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3WMRFKWV\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsd2.tmp\nsisdl.dll (14 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsd2.tmp\MSNGamesSetup.exe (275554 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsd2.tmp\System.dll (11 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\nsd2.tmp\ftdownload.dat (512 bytes)

  4. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  5. Reboot the computer.

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

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