113 lines
884 B
Markdown
113 lines
884 B
Markdown
## Gradient Sky
|
|
The main idea finding the flag is using simple Steganography techniques.
|
|
|
|
#### Step-1:
|
|
After I downloaded `sky.jpg`, I tried simple `strings sky.jpg | grep {`
|
|
|
|
<img src="sky.jpg">
|
|
|
|
```
|
|
n"l`{
|
|
X#,{c#
|
|
<{{!g6
|
|
{}qv
|
|
R{Guv
|
|
9Cs{c=
|
|
f{_(
|
|
2;{PG<
|
|
oH{iy$
|
|
0{Tn
|
|
q{dv
|
|
{=Zw
|
|
=||^{r
|
|
75ub{
|
|
|AcV{
|
|
;?{O
|
|
`58{
|
|
M{>ww
|
|
ET{vz
|
|
{tL=['
|
|
r{;M
|
|
{z_|
|
|
Ezv{M
|
|
ef^{
|
|
{NxTy
|
|
'{w'=\W
|
|
;\&\{
|
|
yv{O
|
|
nyui{
|
|
{.,}
|
|
.{M.
|
|
h)+{8
|
|
={,^
|
|
L,QaQDX{
|
|
X{{V
|
|
fty{/
|
|
xr{4<
|
|
]{>{
|
|
x8]{
|
|
c&A{
|
|
={-^/
|
|
-iQuG-S{
|
|
6{)s
|
|
7{oi
|
|
w'u{
|
|
,:({
|
|
ly={=/.
|
|
{V<7,
|
|
qv{]:
|
|
z={m
|
|
v{M:v
|
|
/@j{
|
|
{Yowk
|
|
M{65
|
|
{]:uc
|
|
M[\{
|
|
yv{M:
|
|
f_UQ{
|
|
m{G/
|
|
W.q{
|
|
E{4;G-
|
|
{63(
|
|
][-z{
|
|
?f{F
|
|
<{\u
|
|
=+:{^
|
|
w={<=x
|
|
xVP{
|
|
Z8<{;
|
|
;}z{
|
|
?-{>
|
|
?9{6
|
|
Vy={>
|
|
o.{[
|
|
{~zru
|
|
{9E~
|
|
m?Oi{
|
|
.{]}
|
|
:zP{
|
|
zv{=:
|
|
k-tb{
|
|
o{tl
|
|
{=3{
|
|
?p{{,
|
|
v{<k
|
|
6{[3
|
|
S{25
|
|
y{_f
|
|
DX}L{
|
|
Y%O{
|
|
sz/{S
|
|
{]Sv
|
|
m6{=
|
|
v[M{;
|
|
{Vf?
|
|
%zv{lLPg
|
|
x'{O
|
|
csictf{j0ker_w4snt_happy}
|
|
```
|
|
Voila! There we have our flag.
|
|
|
|
#### Step-2:
|
|
Finally the flag becomes:
|
|
`csictf{j0ker_w4snt_happy}` |